Again, actually more of a 3.5 star for me, but rounding up because I think this is a great book for Young Adults.

Not yet openly gay, theatre geek Simon’s steamy emails with pen pal “Blue” are discovered by fellow classmate Martin when Simon forgets to close his email on a school computer. Simon must decide if he’ll let Martin’s discovery out him or if he’ll take control of his own destiny in this funny, poignant, and heartwarming coming of age tale.

My quibbles included the very "right now" pop culture references that will age long before the relevance of this book. Also, I've never heard anyone reference Tumblr as "the Tumblr" in casual conversation. Every time I read it (which was too often), it took me out of the story. The ending is a little too "perfect," but overall I enjoyed this sweet tale.