Best Adult Coloring Books Finding your next best book is easy on PurdyBooks.com. Just find your favorite book category from the pull-down menu above, then choose your favorite adult coloring books from below. Once you click on one of the adult coloring book images, you'll be taken to a page with more information about that book. Thanks for supporting Purdy Books If you thought the adult coloring book was just a passing craze, think again. Adult color books come in all shapes, sizes & subject matters. We have biblical color books, swear word color books, animal color books, flower color books, inspirational color books, relaxation color books, Disney color books, holiday color books and even insect color books. And color books are not just an American thing. There's an international coloring movement that is growing daily. One of the first adult coloring books was Johanna Basford's Secret Garden. She "... had a hunch that there were adults out there who would love to return to the days of finger paints and carefree playing with colors." That started the adult coloring book trend. Secret Garden was a bestseller coloring book and started a whole new trend of coloring therapy. Basford's seventh book World of Flowers is now out and shows that adult color books are a popular pastime now and forever. Find Books by Age Level Find books by subject Books for adultsbooks for childrenbooks for teensbooks for young adultsanimal booksbooks by authorBooks by age/gradeclassic booksholiday booksadult coloring books