These histories, biographies, and explanations of mathematical concepts are written for a general audience, so most of them assume no mathematical knowledge beyond a vague memory of high school. For recreational math, you may also want to check the Problem Solving and Math Circles page.
- What Is Math All About?
Thinking, wondering, and looking for patterns. - Recreational Mathematics
Puzzles, patterns, and playful thinking about math. - Biographies: The People of Math
Meet the men and women who made mathematics. - Ideas Through History
Looking back can build understanding and lay a foundation for the future. - Schooly Math Topics
Algebra, geometry, trig, calculus, statistics … what do you want to study?
Within each subcategory, books are listed alphabetically by author.
If you click on a book cover, the links take you to Amazon.com, where you can read reviews and other details (and where I earn a few cents of affiliate commission if you actually buy the book), but most of these books should be available through your public library. Ask a librarian to find you a copy — they love to help!