Keep your mind fit and flexible with a creative twist on sudoku! Research has shown that a great way to keep your memory and cognitive skills at their best is to learn challenging new things that require you to think. That book offers an accessible way to do just that, since almost everyone knows the basics of solving sudoku, but its variations are nearly endless, and just a small change in the rules can make a big difference in the solving experience. This book features a wide variety of sudoku variants (like Clone Sudoku, Even-Odd Sudoku, Killer Sudoku, and many more), designed to keep solvers on their toes, but presented accessibly, with easier puzzles leading into more complex variations. A freewheeling final chapter combines multiple variations in each puzzle.

Help students build fluency and gain confidence as English speakers with this bilingual twist to the classic game. Includes 120 reproducible boards for 15 different themes including: school, home, calendar, animals, transportation, weather and more. A snap to learn and a blast to play! For use with Grades K-3.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

In the era of Big Data and multi-connectivity via IoTs, protecting and securing multimedia data has become a real necessity and priority for organizations and businesses but this can be a rather difficult task due to the heterogeneous nature of platforms and data sets. It is therefore essential to improve the security level of multimedia information by developing core technologies to prevent the loss and damage of information data during processing and transmission. This book covers innovations and future perspectives in access control and security monitoring of multimedia Information processing and transmission. The authors present cybersecurity, privacy and control methods and technologies integrated with Blockchain and multimedia AI, including encryption and watermarking techniques, wearable-based IoT security methods, multimedia data forensics and deepfake video security monitoring. This will be a useful reference for researchers, engineers and scientists in both academia and industry as well as lecturers and advanced students for developing efficient methods, frameworks and techniques for multimedia information processing security and privacy. It will also be of interest to multimedia platform and system developers and designers.