I AM J by Chris Beam
Chris works with teenagers who are Transgender, so who better than her, to write a novel about the matter. She is also the author of the nonfiction book Transparent: Love, Family, and Living the T with Transgender Teenagers.
Many will fall in love with J by the way Beam portrays this character in the book. She does it with so much realism. Its a must read. Find it at your library.