Puzzles & Games

Here are over 300 tantalizing puzzles, brain teasers and riddles by one of the greatest mathematical geniuses of the twentieth century, Shakuntala Devi, popularly known as the 'human computer'. The puzzles include every possible type of mathematical recreation, time and distance problems, age and mo... More

In gathering the most fascinating questions asked about science into a handy Gem format, pop culture guru David Feldman demystifies these and much more in "Imponderables(R): Science," Providing you with information you can't find in encyclopedias, dictionaries, or almanacs, "Science" is a fun look a... More

Being a gentleman is not rocker science. It requires a little logic, a bit of forethought, and a great deal of consideration for others. You've scaled Mt. Everest, performed open - heart surgery, designed a skyscraper, and argued a case before the Supreme Court. But have you ever invited seven frien... More

It appears we are a nation of puzzle obsessives after the phenomenal response to Su Doku. For those Su Doku fiends who are eager for variety, here is a collection of four of the most popular Japanese Logic Puzzles – Hitori, Hashi, Slitherlink, Mosaic. Guaranteed to strain your brain for hours.&nbs... More

One of Sidney Sheldon’s most popular and bestselling titles, repackaged and reissued for a new generation of fans.   Kate Blackwell is one of the richest and most powerful women in the world. She is an enigma, a woman surrounded by a thousand unanswered questions. Her father was a diamond ... More

Tips & Tools for Measuring the World and Beating the Odds Want to calculate the probability that an event will happen? Be able to spot fake data? Prove beyond doubt whether one thing causes another? Or learn to be a better gambler? You can do that and much mo... More

Java Gaming & Graphics Programming Although the number of commercial Java games is still small compared to those written in C or C++, the market is expanding rapidly. Recent updates to Java make it faster and easier to create powerful gaming applications-part... More

Contains more than 600 alphabetically arranged articles, plus 11 essays on such topics as what constitutes "beauty" to a scientist, or the boundaries between physics and metaphysics. The book incorporates several dozen biographical entries, diagrams and black-and-white photos, a roster of... More

This is an updated and expanded resource for young people who need to find the right word to express themselves but are daunted or overwhelmed by adult thesauruses. Expressly designed to meet their needs, the book includes listings for more than 7,000 of the most commonly used words in the English L... More

A useful reference providing current and accurate information on the subject for high school and college students. Comprehensive coverage includes significant discoveries in mathematics, in addition to definitions of basic terms, thought-provoking essays, and capsule biographies of notable scientist... More

Once again, Uncle John goes back in time to bring fans more compelling, confounding, and fascinating peeks into the world's past. As always, the slant is on revealing what isn't taught in history class.Once again, Uncle John goes back in time to bring fans more compelling, confounding, and fascinati... More

The Song of Silence is a collection of 108 songs. The theme of the collection can be best gauged from the opening song:... More

The hot new puzzle craze! Sudoku is a hybrid: its name derives from Japanese (loosely translated it means 'number in an allotted place') and its form can be traced back to the magic squares invented in 18th century Switzerland. The result is a numerical brainteaser that is fiendish, compulsive, and,... More

After Su Doku, Hashi is one of the most popular Japanese logic puzzles in Japan. Hashi requires logic and reasoning, not mathematical ability. If you think Su Doku is addictive, you’ll certainly enjoy the challenge of Hashi.   A collection of 150 new puzzles of varying degrees of diffic... More

What kind of exercise does the brain enjoy? Here the experts are again in agreement. Creative thinking, deductive reasoning and puzzle solving are all excellent areas for building up your mental muscle. The Boost your Brainpower series gives your brain the opportunity for serious regular exercise. P... More

This book contains 400never before published tests, complete with a guide to assessing yourperformance. The questions you will find here are typical of those you arelikely to encounter in actual IQ tests, and provide invaluable practice foranyone who may have to take such a test in the future. By pr... More