Our books
๐ข Sudoku Puzzles
Ten sudoku books, from 4×4 grids for first-time solvers to extreme 9×9. Compare them all by difficulty, grid size and print size →
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1000+ Easy Sudoku Puzzles
Perfect for beginners and anyone looking to relax while training their mind with classic sudoku challenges.
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1000+ Medium Sudoku Puzzles
Take your skills to the next level with medium difficulty puzzles. Ideal for players who want a balanced challenge.
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1000+ Hard Sudoku Puzzles
Master sudoku with challenging puzzles for experienced solvers who love intense mental workouts.
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1000+ Sudoku Puzzles for Adults
Every level in one book: 1000 puzzles across 6 difficulties, from very easy warm-ups to extreme, with all solutions.
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Sudoku Travel Edition
Compact, portable edition with 150 puzzles: 50 easy, 50 medium and 50 hard. Keep your mind sharp on planes, trains, and cars.
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Large Print Sudoku for Seniors
Easy-to-read sudoku with large print. Perfect for seniors who love puzzles and want comfortable gameplay.
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Sudoku Puzzle Book for Kids
Introduce children to sudoku with kid-friendly puzzles that build logic and problem-solving skills.
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Sudoku for Kids 4-6
Colorful and fun sudoku-style puzzles for young learners. Build early logic skills with age-appropriate challenges.
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Sudoku for Kids Ages 6-8
250+ easy and medium puzzles across 6 levels of play, growing from 4ร4 grids all the way up to full 9ร9.
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Sudoku for Kids Ages 8-12
Specially designed for kids 8-12, with puzzles that challenge growing minds while keeping learning fun.
Learn more โโ๏ธ Chess Puzzles & Tactics
Two tactics books built from real games, one for kids and one for adult beginners. Try ten free chess puzzles for kids, with answers →
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1000+ Chess Puzzles for Beginners
Learn chess tactics with carefully selected puzzles. From basic moves to winning strategies, improve step by step.
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Chess Tactics for Kids
Teach children chess with fun, engaging tactical puzzles. Build confidence and strategic thinking skills early.
Learn more โUS Facts & Trivia
Fact and trivia books about America and its fifty states. See which of the three is which → Or print a free 50 states map quiz with answer key.
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250 American History Trivia Questions
Test your knowledge of American history from colonial times to the modern era. Engaging questions for all ages.
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250 Fascinating Facts About America
Discover fascinating facts about the 50 states, landmarks, culture, and history. Perfect for curious minds.
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250 Amazing Facts About the 50 States
A fun fact and quiz book for kids ages 8-12. All 50 states across 8 regions, plus 80 quiz questions with answer keys. Free Family Trivia Night Pack included.
Learn more โ๐ World Geography for Kids
Geography books for ages 6–12, from all 193 world flags and fifty places in Israel to a 100-puzzle trip around the world. Compare all five by scale, age and format → Or start with a free geography quiz or flag matching worksheet.
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Flags of the World
Explore all 193 countries with full-color flags, capitals, maps, quick stats, and fun facts. Color-coded by continent. Free Flag Detective Activity Pack included.
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The 50 States of America
A full-color atlas for kids ages 8-12. Every state gets its own page: flag, map, state shape, capital, nickname and three facts, plus eight region quizzes. Free 50-States Quiz Challenge available now.
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The 20 Regions of Italy
A full-color atlas for kids ages 6-12. Every region gets a two-page spread: flag, map, region shape, capital and three facts, plus a landmark drawn to visit and five area quizzes. Free Italian Explorer Activity Pack available now.
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50 Must-See Attractions in Israel
A full-color photographic guide for kids ages 6-12. Fifty real places get a page each, from Jerusalem and Masada to the Negev craters and the coral reef at Eilat, with a real photograph of every one. Free Israel Explorer Activity Pack available now.
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The Great Geography Puzzle Expedition
100 original geography puzzles for kids ages 8-12 in ten stages from North America to Antarctica: mazes, codes, logic and map challenges, with a hint and an explained answer for every puzzle. Free Stage 11 bonus available now.
Learn more โAll our books are available on Amazon. Discover brain-training books designed for every age and skill level. Happy puzzling! ๐งฉ