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Simple cover design is inspired by 1940s wartime book covers.The Alan Turing Puzzle Books series has sold over 140,000 copies.

You are feeling sleepy... If you're tired of sleepless nights, and wish you could drop off in two shakes of a lamb's tail, then say hello to Kip! Your woolly friend will guide you through this soporific little volume that's filled with more sheep than you can count and plenty of relaxing puzzles. It'll have you snoozing in no time.

Sherlock Holmes is one of the most well-known fictional detectives, with continued interest in all things Sherlock from novels to TV and film adaptations.

OVER 100 APPROVED BRITISH ARMY CHALLENGES

50 puzzles and conundrums inspired by Houdini.

Emeritus Professor of Mathematics Jerry Janusz presents a survey, step-by-step, of most of the known techniques used in solving Sudoku puzzles and illustrates them with many examples so that the casual solver may learn to complete some of the "hard puzzles" that appear in some newspapers and other publications. He provides twenty-five pages of instruction for beginners to Sudoku puzzle solving and ninety pages for more advanced players. The book begins with a description of three elementary techniques that will allow the reader to solve "easy" and "medium" Sudoku puzzles. Then more advanced methods that depend on "candidates" are presented. Techniques such as wings, chains, several types of reduction, almost locked sequences and others are introduced as part of the detailed solution of some difficult and diabolical puzzles. Some consideration is given to puzzles with more than one solution.

The Alan Turing Puzzle Books series has sold over 140,000 copies.

You too can develop a better, sharper memory using the exercises in this book. From improving short-term memory to using repetition and from techniques for learning text to building memory palaces, improve your memory skills in 40 days.

Congratulations! You're 60! You've lived through the summer of love, the moon landings, Den and Angie and the entire history of the internet. This is the quiz book that will give your 60-year-old brain cells a nostalgic workout. So what are you waiting for? Let's take a quizzical look back at your life.

Interspersed with background information on the history of puzzles, Enigma: Crack the Code is perfect for anyone who enjoys being challenged. With over 300 puzzles to solve, including some that can truly be described as enigmas.

Easy to solve . . . hard to resist! What could be better than coffee and crosswords? This first volume of our new series collects all your favorite start-of-the-week puzzles in one attractive, portable package. Features: * Seventy five of the Times's Monday crosswords, their easiest of the week * Convenient trade paperback for easy transport* The #1 names in crosswords: The New York Times and Will Shortz.

The description for the first book, Math Jokes 4 Mathy Folks, fits for his second book, More Jokes 4 Mathy Folks. Who says math can''t be funny? In More Jokes 4 Mathy Folks as in Math Jokes 4 Mathy Folks , Patrick Vennebush dispels the myth of the humorless mathematician. His quick wit comes through in this incredible compilation of jokes and stories. Intended for all math types, both More Jokes 4 Mathy Folks and Math Jokes 4 Mathy Folks provide a comprehensive collection of math humor, each book containing over 400 jokes. This too is a book that all teachers from elementary school through college should have in their library. But the humor isn''t just for the classroom-it also appeals to engineers, statisticians, and other math professionals searching for some good, clean, numerical fun. From basic facts ("Why is 6 afraid of 7?") to trigonometry ("Mathematical puns are the first sine of dementia") and algebra ("Graphing rational functions is a pain in the asymptote"), no topic is safe. As Professor Jim Rubillo notes, " Math Jokes 4 Math Folks is an absolute gem for anyone dedicated to seeing mathematical ideas through puns, double meanings, and blatant "bad" jokes. Such perspectives help to see concepts and ideas in different and creative ways." And as all these endorsers of More Jokes 4 Mathy Folks say: "If you took all the people who fell on the floor laughing when they read this book and laid them end-to-end, you''d have a very long line of people. It''d be a silly thing to do, but at least you''d know who to avoid at a cocktail party."~ Gail Englert, Retired National Board Certified Teacher and NCTM Board Member 2002-05 "If you''re above the 90th percentile, you''ll chuckle or groan at all of the jokes in this book. If you''re above the 50th percentile, you''ll chuckle or groan at some of them. But if you find that you''re not chuckling or groaning at any of them, well..."~ David Barnes, Associate Executive Director, NCTM "Laughter is good for your health. Really, it is! That''s why I''m very glad that Patrick Vennebush has done it again! Take your own journey through MORE JOKES 4 MATHY FOLKS; but regardless of the path you take, you''ll smile, laugh out loud, and think about ways to use or adapt some of these jokes in your own classroom or personal repertoire."~ Francis (Skip) Fennell, Professor Emeritus, McDaniel College, and Past President AMTE and NCTM "Henny Youngman and Leonhard Euler walk into a bar. Patrick Vennebush faithfully captures their conversation in this collection of old saws, with all the corollaries worked out, along with some new results. He proves that math, unfairly the dread of many, is more than ready to have a good laugh. Like a good joke, good math has a set-up that invites the reader to wonder what is coming, then - pow! - a zinger of a punchline that surprises and delights. Vennebush shares humor found in this intersection that will give a chuckle, maybe a groan, and some sneaky insights."~ John Golden, Associate Professor, Grand Valley State University, and Blogger at http://mathhombre.blogspot.com "While everyone loves to laugh, most people wouldn''t expect that to take place in a math classroom. This book fixes that problem with humor that kids and adults will chuckle about. Check out these jokes out, and share them with your students and colleagues!"~ Robert Kaplinsky, Math Teacher Specialist,Downey Unified School District "What an amazing collection of jokes, problems and stories that are "plays" on numbers, their names, relationships among them, and how they are used in many fields and by folks in varying professions. I spent lots of time trying to figure out how the answers to questions were determined - strange relationships! - and had my colleagues and students try to solve them, too. That figuring-out process produced many laugh-out-loud results. You don''t have to be a math aficionado to love this book."~ Carole Greenes, Professor and Director of the PRIME Center, Arizona State University "Patrick Vennebush proves why he will never be eaten by cannibals-he would surely taste funny. The second volume of mathy jokes will bring smiles to the faces of teachers and groans from students when you use these jokes in class!"~ Fred Dillon, Institute for Learning, University of Pittsburgh "Vennebush never fails to entertain! His work is worthy of a limerick: Patrick was faster than most folks In learning a collection of math jokes. They roll off his tongue Faster than bells that have rung, So he published some books for us slow pokes." ~ Johnny Lott, Professor Emeritus,University of Montana, and NCTM President 2002-04

From the Bronze Age to the end of the Second World War, this quiz book covers 5,000 years of world history and provides the ultimate challenge for any history buff.

Full of information which will make you say, `I never knew that!'

Pit your wits against the greatest detective of them all with collection of fiendish and entertaining puzzles and enigmas.

Join the world's greatest fictional detective and use your own powers of deduction to solve these ingenious enigmas.

HOW TO PLAY SU DOKU, KAKURO AND HANJIE -- AND SUCCEED! Su Doku -- the logic puzzle that took the world by storm and shows no sign of stopping. Kakuro -- a brain-teasing Japanese puzzle that for many is even more entertaining than Su Doku. Hanjie -- the classic Japanese puzzle that uses logic to reveal a picture. The absorbing combination of numbers and logic makes the puzzles in this book completely addictive. With 150 all-new and unique Su Doku, Kakuro and Hanjie puzzles, of increasing levels of difficulty, The Essential Book of Japanese Puzzles also contains full instructions to each game, along with hints, tips and strategic guides, as well as solutions. Su Doku, Kakuro, Hanjie -- three great games in one great book.

How tough are you? These 150 kakuro are for top solvers only!

Step into the fascinating world of puzzles with the 'Big Book of Crosswords 1' by Collins Puzzles. Published in 2017, this book is a must-have for all crossword enthusiasts. The book belongs to the genre of Puzzle & Games and is a treasure trove of mind-boggling crosswords that challenge your intellect at every turn. With its publication by HarperCollins Publishers, one of the world's foremost publishing houses, you can expect nothing but the best quality. So, dive into this exciting world of words and let your mind explore the endless possibilities. Happy puzzling!

More than a trivia book, this interactive game includes an electronic scoring module that allows readers to quiz themselves or compete against a friend. With 2,500 questions covering the expansive Marvel Universe, it features every character.

A brainy book about great Britons. Pitt your wits against 100 quick and fun word puzzles based on famous British figures. These crosswords, word wheels, codewords and brainteasers will delight puzzlers of all ages.

These delightful and stylish editions celebrate the work of Bletchley Park and make the perfect gift for anyone interested in such an important part of history.