What should you do when you know that the solution to a problem is right in front of you, but you just can't see it? Working through problems needn't be hard work - in fact, trying too hard can trap you in rigid thought patterns and blind you to unexpected but brilliant solutions. This brain-training puzzle book will help you to see and think in new ways, and allow you to channel your thoughts in a fresh direction. Includes an extended introduction with pointers on how to think outside the box, as well as How to Think tips to improve your problem-solving skills as you work through 50 thought-provoking puzzles.

Kakuro is the next hot puzzle craze, and everyone can give it a try with this new, multilevel series. These language-free number puzzles use pure logic and require just simple arithmetic to solve. So, in addition to being fun, they help develop your powers of deduction and reasoning. Beginners can get started - and more experienced solvers hone their skills - with these perfectly tiered "belt" books, each containing 150 kakuros. They take their cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.

When just having a black belt in kakuro isn't enough, step up to the next level! These tricky puzzles require the very best skills - and give top solvers the complete mental workout they want.

Test your wits against 210 brand-new killer sudokus with this formidable collection of the world's favourite puzzle. This compilation draws on all the knowledge of the expert puzzle writers at the Guardian, whose killer sudokus are enjoyed by hundreds of thousands of people every day. All of your logical reasoning will be required to solve these previously unpublished puzzles, specially designed to increase in difficulty as the book progresses.

This book is a reverent and interactive homage to David Bowie, with dense illustrations of the many real and imagined universes of his own making. Hidden somewhere on each of these double page spreads, a Bowie is patiently waiting to be spotted by the well-trained eye of a fan. As the chameleonic Bowie took on so many iconic personas across his illustrious career, each moment is celebrated chronologically in this book. You will have to find young and dapper David Jones in 1960s Brixton; look for Ziggy Stardust in spaced out Outer Space, crawling with Martian spiders and nestled between the stars; then search for glam Bowie among the revellers at Studio 54; and ask yourself, "is that the Thin White Duke outside Hansa By the Wall in late-70s Berlin?" Each page of this book is so laden with Bowie references that you might even pick up a factoid or two in your search. With fun, detailed illustrations that explore Bowie's world - and that of his influences - Where's Bowie is the perfect guide to the cultural icon for both adults and children. Plus, who doesn't want to raise their kid as a Bowie super-geek? No one - that's who.

Feathers 500 Piece Foil Puzzle features vibrant watercolor feathers from artist Margaret Berg. Gold foil accents create a stunning pattern of plumage that comes together piece by piece. Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage.

More than 200 word search puzzles are dedicated to the fascinating exhibits and beautiful gardens found in and around the Smithsonian's museums. Includes flowers, trees, succulents, fruits, vegetables, exotics, and heirlooms. Search for words that relate to and describe these botanical wonders, and read interesting facts along the way. Word lists include easy, moderate, and challenging searches. Keep your brain fit by and test your word-finding skills searching vertically, diagonally, forwards, and backward in pursuit of hidden words.

This collection contains a fantastic variety of puzzles to satisfy beginner and expert puzzlers alike and offers a much-needed brain boost for hours of entertainment. Help improve memory and focus by completing a new find-the-word challenge every day, with a variety of unique themed word searches with this Smithsonian Word Seach Book!

• OVER 200 PUZZLES & SOLUTIONS: Hours of fun and entertainment to enjoy with a large variety of everyone's favorite seek and find word puzzles.
• LAY FLAT: Spiral-bound lays flat for ease of use at home or on the go. Whether you're drinking your morning coffee, riding on the train, or relaxing on vacation this puzzle book can go with you.
• MAKES A GREAT GIFT: A perfect gift for Mother's & Father's Day, Christmas, birthdays, vacations, and more, word finds make an excellent gift for any occasion.
• BRAIN BUSTERS: Part of the Brain Busters Puzzle Collection from Parragon & Cottage Door Press and officially licensed by the Smithsonian. Look for other books including Smithsonian Natural History Word Search & Women in History Word Search, The Ultimate Book of Mixed Puzzles, John Deere Word Search, Large Print Word Searches, Bible Word Search, Crosswords, Picture Puzzles, and More!

Enjoy a fun and creative 1,000-piece jigsaw puzzle featuring the gorgeous Diamond Quilt from Kaffe Fassett. This colourful and detailed statement piece is perfect for quilters, quilting enthusiasts, and anyone looking to challenge themselves. It's the perfect gift for crafters, and any puzzle lovers in your life.

LEARN SHORTCUTS Many of the puzzles will seem as though they will take longer than two minutes to solve, but ... there are shortcuts if you can find them!! There are faster ways to solve each problem and dilemma. The Two-Minute Puzzle Book will teach you to look for such loopholes and shortcuts!ENGAGING THEMATIC PUZZLES From Chapter One's 'The One and Only' through Chapter Nine's 'The Whole Nine Yards', each chapter contains puzzles related to the chapter's theme. For example, in the second chapter, you will find mechanical puzzles with double pieces, riddles about couples, line puzzles and more.There are match puzzles, tangram-related puzzles, paper puzzles, geometric puzzles and mathematical puzzles to tease and occupy all types of puzzlists. Some require intuition but all are two minutes away from a solution.UNIQUE CHALLENGES As with their previous puzzle books, the authors, David Goodman and Ilan Garibi, aim to provide a fresh and original book. Many of the puzzles are coming from their heads and are not retreads!! There are some classic puzzles too, but the authors present them in an original way.CULTIVATE YOUR BRAIN TO THINK CREATIVELY Crack open this book and allow the puzzles presented to train your brain. Always look for a bypass or shortcut. Find a different point of view. By rephrasing the question, a solution may surface!We hope that this book will tickle your imagination and sharpen your mind. You just might begin to solve everyday 'real-world' problems differently. FLEX YOUR BRAIN.

Hard on the Brain, Easy on the Eyes! Challenging, baffling, and absorbing, these word search puzzles are easy-to-read in large-size print. There's a little bit of pop culture, sports and games, and more to keep things interesting, and a wealth of travel-related themes to take you on a mental vacation collecting cleverly hidden words. When you've circled all the words in each grid, read the leftover letters to get a bonus message related to the puzzle. But even if there's a word you can't find in these conundrums, it won't be because it's too small to read!

John Derian is an artist and designer whose work with printed images from the past transports the viewer to another world. With its deep, jewellike tones, Dancing Butterflies captures that time when the simple reproduction of color was a thing of wonder. This print from the nineteenth century features seven species of butterfly, the faint ID numbers still visible, hovering over a beautifully etched thistle in the kind of art-meets-science still life that inspired a generation of Victorian naturalists. Featuring: 750 full-color interlocking pieces Art print with puzzle image Finished puzzle is 18 7/8" x 26 3/8"

For many decades, Martin Gardner, the Grand Master of mathematical puzzles, has provided the tools and projects to furnish our all-too-sluggish minds with an athletic workout. Gardner's problems foster an agility of the mind as they entertain. This volume presents a new collection of problems and puzzles not previously published in book form. Martin Gardner has dedicated it to "all the underpaid teachers of mathematics everywhere, who love their subject and are able to communicate that love to their students."

Consider this: Robots will one day be able to write poetry and prose so touching that it will make men weep; compose dozens or even hundreds of symphonies that will rival the work of Mozart; judge a court case with absolute impartiality and fairness; or even converse with the natural ease of your best friend. Robots will one day be so life-like that a human could fall in love and marry one. Thought provoking and controversial? Certainly. Far-fetched? Not at all. David Levy presents the history of Artificial Intelligence, considers recent developments, and speculates about the future of AI. A complete bibliography is available here.

Saunders Mac Lane was an extraordinary mathematician, a dedicated teacher, and a good citizen who cared deeply about the values of science and education. In his autobiography, he gives us a glimpse of his "life and times," mixing the highly personal with professional observations. His recollections bring to life a century of extraordinary accomplishments and tragedies that inspire and educate. Saunders Mac Lane's life covers nearly a century of mathematical developments. During the earlier part of the twentieth century, he participated in the exciting happenings in Goettingen---the Mecca of mathematics. He studied under David Hilbert, Hermann Weyl, and Paul Bernays and witnessed the collapse of a great tradition under the political pressure of a brutal dictatorship. Later, he contributed to the more abstract and general mathematical viewpoints developed in the twentieth century. Perhaps the most outstanding accomplishment during his long and extraordinary career was the development of the concept of categories, together with Samuel Eilenberg, and the creation of a theory that has broad applications in different areas of mathematics, in particular topology and foundations. He was also a keen observer and active participant in the social and political events. As a member and vice president of the National Academy of Science and an advisor to the Administration, he exerted considerable influence on science and education policies in the post-war period. Mac Lane's autobiography takes the reader on a journey through the most important milestones of the mathematical world in the twentieth century.

Planter Perfection 1000 Piece Puzzle with Shaped Pieces from Galison celebrates container planting and the newfound focus on upcycling. This puzzle includes 20 specially shaped pieces for an added challenge. Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. * 1000 Piece Puzzle, Random Cut * Puzzle Size: 27 x 20", 686 x 508 mm * Box Size: 11.5 x 8.5 x 2", 292 x 216 x 51 mm, Minimal Puzzle Dust * Includes 20 Shaped Puzzle Pieces * Includes Puzzle Insert * Puzzle greyboard contains 90% recycled paper. Packaging contains 70% recycled paper and is made responsibly from FSC-certified material. Printed with nontoxic inks.

IFLScience and puzzles unite in the IFL Science! The Official Science Puzzle Book - a perfect combination for anyone who wants to be amazed by the furthest reaches of scientific exploration while solving an enjoyable conundrum. Can you successfully crack the code hidden in the synthetic DNA? Can you bridge neurons in a brain correctly and create consciousness? Are you able to split the atoms without setting off a dangerous chain reaction? These puzzles - alongside more than 100 other enigmas and questions - are combined with introductions to dozens of scientific concepts and discoveries, providing an opportunity for every aspiring scientist to learn and explore while they solve.

*** Test your code-cracking abilities with 300 of the Telegraph's most addictive puzzles. How does it work? Well, each grid contains numbers that correspond to a letter of the alphabet. With the help of a few solutions to start off, all you'll need to do is complete the puzzle by working out every letter's respective number. The perfect mental workout and screen-free activity, The Telegraph Big Book of Codewords 1 will provide hours of entertainment, whether you're at home with a cup of tea or passing the time on a long commute.

Celebrate diverse books and discover new literary finds with this 500-piece puzzle. This 500-piece puzzle features art from Bibliophile: Diverse Spines by Jamise Harper (founder of the Diverse Spines book community) and Jane Mount (author of Bibliophile ). With over 60 books colorfully illustrated, this puzzle comes with a handy "Where to Start" reading checklist, so you can be inspired to go on your own literary adventure.

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.

Extreme Spot the Difference is the ultimate photo puzzle challenge. Tougher, more engaging and more visually impressive than anything you've seen before, this book takes you on a tour of the world's most beautiful, busy and exotic cities in amazing extreme detail.

A NEW TWIST ON A POPULAR PUZZLE CUBE! Invented by Piet Hein, the Soma cube is one of the most famous mechanical puzzles in the world. The traditional challenge and outcome is to build a cube or other structures from all seven pieces.CHANGE THE RULES, CHANGE THE OUTCOME! The puzzles in this unique Soma-inspired collection are no longer predicated upon using all seven pieces at one time! By varying the number of pieces, there are many new and versatile puzzle challenges, from all types of recreational mathematics fields. For example, you will find symmetry puzzles, cover-up puzzles, and even fraction puzzles. The chapters are divided according to the number of pieces used; from single-piece puzzles to puzzles requiring a complete set.WHY USE THE SOMA CUBE? From the moment our creative team changed their rules of engagement for this new collection, the potential puzzle challenges and their solutions became nearly limitless! There is something magical and enchanting in those seven pieces that enabled us to find many puzzles and challenges!NEW CHALLENGES Most of the puzzles demonstrated within the book are original. Some are based on classic puzzles, as well as more modern ones, modified and presented by using the set of Soma pieces.LOW COST AND HIGH INTEREST FOR HOURS OF ENTERTAINMENT WITH INCREASING COMPLEXITY! This is a unique collection of puzzles - all you need is a set of the Soma cube. The puzzles range from easy to difficult and they appeal to a wide audience - all within the reach of the general public. It presents many geometrical and mathematical principles, and makes them easier to understand. However, no special knowledge in mathematics or geometry is required.