THE INSTANT #1 BESTSELLER! FEATURED ON 60 MINUTES and FRESH AIR “So surprising and moving and true that I became completely unstrung.” – The New York Time

The beloved, #1 global bestseller by John Green, author of The Anthropocene Reviewed and Turtles All the Way Down “John Green is one of the best writers alive

“This gripping novel examines anxiety, identity, pressure, and power with Barnard’s characteristic lightness of touch.” —The Guardian “Nuanced, compel

Rich with humor and metaphors from other cultures and disciplines, Turtles develops the characteristics common to the geniuses whose patterning formed the initi