These books develop mathematical reasoning and critical thinking skills that are vital to achieving academic and lifelong success. They're great for introducing students to encryption, algebraic thinking, and basic computer programming operations. Perfect for school, home, and travel, they are popular as brain jump-start, extra-credit, sponge, or reward activities.

To solve a Crypto Mind Bender® puzzle, students must break a secret code so they can identify a hidden joke or quotation. To break the code, students must apply logic and mathematical reasoning to 3-sets of clues. The challenge is getting all the information out of each clue! Once students break the code, they can solve the cryptogram by substituting the numbers with their corresponding code letters.

The Famous Quotations book familiarizes students with classic quotations from famous thinkers such as Albert Einstein, Voltaire, Socrates, and more! The Classic Jokes edition familiarizes students with classic, good-humored, jokes that both kids and adults enjoy.