The author of Curious Math, Clay Ford, enjoys mathematics. While Ford claims not to be an expert by any means he maintains a fun website full of math tricks and trivia. Examples of postings include how to "quickly square a number that ends in 5" and "why the number 153 in the Bible is such an interesting number." Visitors can search a particular subject or browse the Math Topics, which are categorized as Facts, Trivia & Fun, News & Updates, or Tricks, Rules & Methods. The articles are also organized by Top 10 most read, most commented, and most active new submitters. Registered users can post comments to the entry, submit a math article on tricks and trivia, contact other users, or join the discussion forum. Registration is free.