A CUNNING CHRONICLE OF THE 50 CODES THAT ALTERED THE COURSE OF HISTORY AND CHANGED THE WORLD From the bestselling author of Bletchley Park Brainteasers and The Scotland Yard Puzzle Book. There have been secret codes since before the Old Testament, and there were secret codes in the Old Testament too. Almost as soon as writing was invented, so too were the devious means to hide messages and keep them under the wraps of secrecy. In 50 Codes that Changed the World, Sinclair McKay explores these uncrackable codes, secret cyphers and hidden messages from across time to tell a new history of a secret world. From the temples of Ancient Greece to the court of Elizabeth I; from antique manuscripts whose codes might hold prophecies of doom to the modern realm of quantum mechanics, you will see how a few concealed words could help to win wars, spark revolutions and even change the faces of great nations. Here is the complete guide to the hidden world of codebreaking, with opportunities for you to see if you could have cracked some of the trickiest puzzles and lip-chewing codes ever created. ----------------------- Praise for Sinclair McKay's books: 'This book [The Secret Life of Bletchley Park] seems a remarkably faithful account of what we did, why it mattered, and how it all felt at the time by someone who couldn't possibly have been born then. - THE GUARDIAN [Bletchley Park Brainteasers] is outrageously difficult but utterly fascinating. - THE EXPRESS 'Sinclair McKay's account of this secret war of the airwaves in [Secret Listeners] is as painstakingly researched and fascinating as his bestselling The Secret Life Of Bletchley Park, and an essential companion to it.' - DAILY MAIL

This safari will send students on an expedition that will result in hours of good thinking and unbridled enthusiasm. As enthusiasm soars, so do the levels of thinking skills engaged. Students love these deductive logic puzzles so much that they beg to do them, little realizing that they are building important reading comprehension and thinking skills. Teachers love these puzzles because of their ease of use in multicurricular parallels and their effortlessness in fitting into pullout programs of limited duration. Each motivating puzzle includes an introduction with student-related topics, clues, a grid, and an illustration. The goal in Logic Safari is to hunt down the clues, sort, analyze, and combine them into the correct solution. Each book represents an ever-increasing challenge to students while scenarios remain fresh, evoking renewed eagerness. The size of the grids is an indication of difficulty. This is the first book in a three-part series of deductive logic puzzles. For more advanced puzzles, see Logic Safari Book 2 and Logic Safari Book 3. Grades 2-3

Collected over several years by Peter Winkler, of Bell Labs, dozens of elegant, intriguing challenges are presented in Mathematical Puzzles. The answers are easy to explain, but without this book, devilishly hard to find. Creative reasoning is the key to these puzzles. No involved computation or higher mathematics is necessary, but your ability to construct a mathematical proof will be severly tested--even if you are a professional mathematician. For the truly adventurous, there is even a chapter on unsolved puzzles.

The ideal gift for su doku enthusiasts. If you like to live dangerously and push beyond your mental comfort zone, steel yourself for The Times' toughest Ultimate Killer puzzles. A bumper collection of more than 360 puzzles for hard-core solvers. Selected from The Times these puzzles will challenge the sharpest minds. Includes Deadly-level Killer puzzles, and Extra Deadly, to really test your limits: this is the only place you'll find such a torturous collection in a single book. These puzzles are not for the fainthearted, they use the same 9x9 grid as Su Doku, and have an added mathematical challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1-9, it is also necessary to ensure that the outlined cubes add up to the same number as well. But unlike with previous books, there is no chance to ease yourself in with Easy, or even Tough puzzles: this book is the Ultimate Killer Su Doku - completely deadly. Puzzles in this collection are taken from Times Ultimate Killer Su Doku Books 1, 2 and 3.

Gray Malin The Holiday 3-in-1 Puzzle Set from Galison includes three 120 piece puzzles featuring three of Gray's best-selling holiday images. Gray Malin puzzles are the perfect gift for puzzle and fine art photography enthusiasts alike. * Exterior Box w/ magnetic closure: 8.75 x 4 x 1.5", 222 x 101 x 38 mm * Three Interior Puzzle Boxes: 2.75 x 3.75 x 1", 70 x 95 x 25 mm * Three 5.5 x 8" Puzzles, 120 pieces each * For 1-3 Puzzlers * Minimal Puzzle Dust

Piece together a fascinating visual exploration of the natural world. Featuring illustrations from Julia Rothman's best-selling book Nature Anatomy, this jigsaw puzzle will open your eyes to new ways of seeing earth and sky, flora and fauna. With each piece you put in place, nature's wonders unfold: the crystalline structure of a single snowflake, the different types of feathers on a bird, a constellation of stars. A distinctive blend of art and science, this sweeping study of the universe will delight, educate, and enlighten.

Learn to fold incredible geometric origami models from "The Queen of Modular Origami!" In this book, Tomoko Fuse--Japan's most famous living origami artist--shows you how to create amazing polyhedral models using the techniques of modular origami (where many paper sheets are folded then locked together without glue or tape). Make 64 intriguing modular models, including: Stackable Modules--The perfect starting point for novices, these simple constructions result in stunning three-dimensional forms 3-D Stars--Dazzling decorative starbursts that look great on a Christmas tree, on your mantle--or even in an art gallery Manifold Modulars--"Inception-like" models in which individual modular constructions themselves become modules within a larger piece Cubes and Boxes--Perfect for gift giving--and there is no finer teacher for these than renowned origami box specialist Tomoko Fuse And many more! *Recommended for experienced folders and up*

Supporting the work of Battersea Dogs and Cats Home Battersea's Dog Puzzle Book is packed with fun-filled teasers dedicated to our furry, four-legged friends. Puzzle your way through more than 100 dog-themed brainteasers. From crosswords to wordsearches, hidden codes to logic puzzles, you'll find more than 100 puzzles to challenge and entertain all dog lovers, from young pups to old hounds.

Part of an exciting series of sturdy, square-box 1000-piece jigsaw puzzles from Flame Tree, featuring powerful and popular works of art. This new jigsaw will satisfy your need for a challenge, with a popular masterpiece of post impressionism, National Galleries Scotland: Robert Burns, The Hunt. This 1000 piece jigsaw is intended for adults and children over 13 years. Not suitable for children under 3 years due to small parts. Finished Jigsaw size 735 x 510mm/29 x 20 ins. Now includes an A4 poster for reference. The vibrant colours and patterns of this panel by Robert Burns provide a jungle-like setting for the Greek goddess Diana, and her nymphs. The wild birds and animals, including the striking leopards at the front, allude to her role as the goddess of hunting. The panel is filled with exuberant rhythm and energy characteristic of 1920s design. It was created as part of the ambitious first floor decoration for Crawford's Tea Rooms at 70 Princes Street, Edinburgh. Burns was responsible for every detail of the interior design from the murals to the cake-stands.

Our Albert Racinet Ancient Egypt art is a nod to vintage art and design that helped influence Art Deco of the early 20th century. Albert-Charles-Auguste-Racinet (1825-1893) was a French costume historian, painter, illustrator, and author. Racinet's publication L'Ornement Polychrome is a monumental collection of more than 100 richly-coloured lithographic plates depicting decorative artwork from ancient civilisations through the 18th century. 500-piece jigsaw puzzle Durable, compact, 2-piece box Gift box: 152 x 198 x 50 mm Completed puzzle: 482 x 355 mm teNeues NYC Stationery keeps up with fun and games at home with our museum-quality printed 500-Piece Puzzles. Packaged in durable, compact boxes, our 500-Piece Puzzles feature full-colour artwork, expertly-printed with nontoxic inks on sturdy, puzzle grey board.

Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate - another Japanese art - each title is graded by colour: White for easy, Green for medium, Brown for hard & Black Belt, for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! So, you've worked your way through the easiest, for-beginners-only KenKen. The next level awaits you. Do you have what it takes to solve these 300 puzzles?

Artist Ben Gilles describes his work as a composition of nature, metamorphosis, light, color, collage, collaboration, juxtaposition, repetition, excitement, evolution, manipulation, music, television, improvisation, participation, and seduction. The Butterfly Blooms 144 Piece Wood Puzzle from Galison features a richly colored illustration of flowers and butterflies. Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. An insert of the full puzzle image is also included. * Box Size: 7 x 7 x 1.75 ", 178 x 178 x 44 mm * Puzzle Size: 8.75 x 8.75 ", 222 x 222 mm * 144 Wood Pieces * Foil Stamped Box * Includes Puzzle Insert with Puzzle Image

For half a century, the KGB was the most feared agency in the world, and the security organisation's noble agents operated in secret to further the glorious Soviet cause in countries around the globe. In the KGB Killer Puzzles Dossier you can attempt to crack the codes and solve the puzzles that the KGB would have set their finest agents in order to ensure they were ready for their time in the field. More than 100 tests of memory, cryptic ciphers and logical brainteasers await those who want to learn more about the dark arts of the greatest spies ever. Further, a series of survival secrets are revealed to ensure your time under cover is not quite as short-lived as the enemy agents would like.

Do you have what it takes to be a spy? Learn how to walk in the shadows and take down prolific criminal networks. Containing eight escape room scenarios, test your decision-making skills in this interactive puzzle book. Can you crack the cases before they discover your identity? Get ready to be taken through the ranks of secret service training, as you learn how to infiltrate the world's toughest gangs - and stop them in their tracks before they get away with the crime. Including verbal and visual puzzles, spot the difference, as well as code-cracking cryptograms, hanjie, sudoku and much more, this is an ultimate puzzle book, for new and seasoned puzzlers alike. The rules are simple. Solve each of the eight cases in under an hour, or your cover will be blown. Also available: The Perfect Crime Puzzle Book (9781789293357).

Not every problem has an obvious solution. Utilize the power of lateral thinking to think imaginatively and creatively to tackle everyday problems in a new, fresh way. Lateral thinking is about re-thinking your approach to problem solving and using an indirect method to come up with innovative results. But how easy is it to do it? In Lateral Thinking for Every Day, acclaimed writer Paul Sloane clearly explains how you can benefit from using a lateral thinking approach. Using inspiring examples from great lateral thinkers including Lady Gaga, Elon Musk and Tim Berners-Lee, this collection of practical tips, techniques, examples and challenges is guaranteed to help you deploy powerful reasoning techniques, become more persuasive and convincing and to come up with fresh solutions to creative challenges.

Donut Club 500 Piece Puzzle from Galison colorfully celebrates the joy and wonders of a delicious donut. Now, are you more of a sprinkles or glazed donut fan? Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. * 500 Pieces, Ribbon Cut * Box: 8 x 8 x 1.5", 203 x 203 x 41mm, Puzzle: 20 x 20", 508 x 508 mm * Includes Color Puzzle Insert with Puzzle Image * Virtually No Puzzle Dust * Puzzle greyboard contains 90% recycled paper. Packaging contains 70% recycled paper and is made responsibly from FSC-certified material. Printed with nontoxic inks.

This book packs hours of solving into a portable paperback with a flashy, fun cover. So grab a pencil and enjoy 200 of easy to hard crossword puzzles, chosen from the newspaper. Features: * 200 easy to hard"New York Times" crosswords* Portable and perfect for solving on the go
* Edited by the #1 man in American crosswords, Will Shortz

Bring on the cacti with this 500 piece 2-sided puzzle from Galison, featuring photographs by the talented Edyta Szyszlo. - Package: 11.5 x 8.5 x 1.5" - 500 double-sided pieces, one side glossy and one side matte - Complete puzzle: 24 x 18" - Includes insert with information about the artist and image

2021 Illumination Award Bronze Medal Winner Hundreds of crosswords, word searches, sudokus, matching puzzles, and quote identification games to test your knowledge of scripture, Bible stories, and Bible characters With 500 puzzles, Bible Power Puzzles is sure to sharpen your memory and knowledge of both the Old and New Testaments of the Bible. Thanks to bold, large print, Christians young and old can complete these fun puzzles and activities based on everything from Jesus's parables to Old Testament laws to the Twelve Apostles. This enormous workbook will keep you busy for hours whether you need to occupy your downtime, relax in the evening, or entertain yourself and your family on a long car ride. This book is filled with plenty of different types of puzzles, logic activities, and brain teasers to choose from, including: Crosswords Word searches Trivia Scripture sudoku Matching games And more! Whether you're a beginner or an expert, this Bible-themed puzzle book will have something for you. Impress your pastor, priest, or Bible study group with the knowledge you gained from Bible Power Puzzles!

Part of an exciting series of sturdy, square-box 1000-piece jigsaw puzzles from Flame Tree, featuring powerful and popular works of art. This new jigsaw will satisfy your need for a challenge, with a masterpiece of modern American Art, American Gothic by Grant Wood. This 1000 piece jigsaw is intended for adults and children over 13 years. Not suitable for children under 3 years due to small parts. Finished Jigsaw size 735 x 510mm/29 x 20 ins. Now includes an A4 poster for reference. Grant Wood's image of two stoic Iowa citizens installed in front of their gothic-hinted home has become a classic of modern American art. Modelled by Wood's daughter and a local dentist, the painting offers a defiant statement of prosaic regionalism in a cultural world then dominated by the modernist tendencies of Europe and Russia, a reposte perhaps to the expressive works of Picasso, Kandinsky and their fellows. The folk art of American Gothic presents a familiar world of local history and imbues it with echoes of Old West photography, with proud owners standing awkwardly in front of their pioneer homesteads. Wood, though, appears subtly to undermine the simplicity of the image with darker implications of the gothic window, the tricorn rake, and the severe expressions of the protagonists, which draw the viewer into the more enigmatic world of the long, dark nights of the American gothic countryside.

From sitcoms to the nightly news--a TV-themed puzzle for everyone! Even the most dedicated couch potato will want to turn off the TV and try these entertaining and challenging word search puzzles. Puzzlemaster Charles Timmerman gives you oversized puzzles that cover every topic, from classic favorites to the newest shows, and from sitcoms to police procedurals. Whether you're a pencil puzzler, word search enthusiast, or just looking for a fun and engaging way to spend some time, you'll be delighted by The Everything Large-Print TV Word Search Book. Test your TV IQ with themes like: TV stars Family dramas Television through the years Animated shows Sports on TV Soap operas Award-winning television Plus, word search puzzle are good for you! Word puzzles help improve memory, vocabulary, and problem-solving skills, and they give you a great mental workout. This is the perfect collection for TV aficionados and word lovers alike.

A Vogue 2021 gift guide pick "For someone who adores flowers, it would be a joy to put together this puzzle." --House Beautiful, Beautiful Things: Gifts to Give Your Home A rose in full bloom. What is more captivating? Adapted from a nineteenth-century chromolithograph from the collection of John Derian, the artist and designer whose work with printed images of the past transports the viewer to another world, Garden Rose challenges the puzzle doer with its subtle tones of parchment and repetition of leaves and thorns, and utterly enchants with the delicate pink bull's-eye of its single, mesmerizing bloom. Featuring: 1,000 interlocking pieces Mini-poster (6 3/4" x 9 3/8") for reference or framing Completed puzzle size: 18 7/8" x 26 3/8"

Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate, another Japanese art, as each title is graded by colour: White for easy, Green for medium, Brown for hard & this one, Black Belt, for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! Are you experienced? These are the hardest KenKen for super-solvers only! Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 with the goal of improving his students' math and logic skills. This understandable, fun and challenging puzzle quickly became a favourite leisure activity for all ages throughout Japan and then for millions of players worldwide. Now it's carried in the "New York Times", "Los Angeles Times", "Chicago Tribune", "The Times", "Scholastic" classroom magazines and more. This book contains 300 puzzles.

Oversized word search fun! Do you love doing word searches but hate squinting to read each clue? Then The Everything Large-Print Word Search Book, Volume VII is perfect for you. Say goodbye to the small type and tight spacing in typical word search puzzles. This all-new volume of oversized puzzles will delight readers who prefer large type, while helping to boost vocabulary, memory, and problem-solving skills. With puzzle themes ranging from: Television shows Books Favorite foods Music It doesn't matter what level puzzler you are--The Everything Large-Print Word Search Book, Volume VII has something for everyone. It's got all the fun of typical word searches, but without the eyestrain!