Most Popular Books by HarperCollins Publishers

The official utterly addictive number-placing puzzle Electrify your mind with these all new Difficult puzzles. These entertaining puzzles offer more than just hours of fun—Su Doku engages your brain, improves your concentration, and helps you stay mentally fit. With 150 brand-new puzzles to complete, you''ll become a Su Doku master in no time!

The official utterly addictive number-placing puzzle Warning: without proper precautions, these all new Fiendish puzzles may just blow your mind. These entertaining puzzles offer more than just hours of fun—Su Doku engages your brain, improves your concentration, and helps you stay mentally fit. With 150 brand-new puzzles to complete, you''ll become a Su Doku master in no time!

The official utterly addictive number-placing puzzle Look out: these Fiendishly tough puzzles are pure evil. Don''t say we didn''t warn you. More than just hours of entertainment, Su Doku engages your mind, improves your concentration, and helps you stay mentally fit. If you can make it through these 150 brand-new puzzles, you''ll be an indisputable Su Doku master.

This full color highly illustrated and engaging guide presents a world of possibility in your pocket. Comprehensive and completely up-to-date, this compact volume explains the origins, history and symbolism of the flags of over 200 countries. Containing fascinating facts as to why certain colors and images are used to reflect a country, this book is organized by geographic region to show inter-relation of the flags of neighboring countries, includes full-color illustrations of national and sub-national flags and a glossary of flag terminology.

"If you buy one book ... for sheer fun, there''s no question it should be this one". -- San Diego Union Tribune Edward is fired of being an emu, so he decides to try being something else for a change. First he spends some time swimming with the seals. Next, he lounges with the lions. He even slithers with the snakes. But Edward soon discovers that being an emu may not be so bad after all. So he heads back to his pen, only to find a big surprise awaiting him .... Sheena Knowles''s upbeat, rhyming text and Rod Clement''s deliciously droll illustrations are sure to make readers laugh out loud in this whimsical picture book by the creators of Edwina the Emu.