George (by Alex Gino)

A book about a girl who at birth was assigned male and named George. She wants nothing more than to play Charlotte in her middle school's production of Charlotte's Web, and to be seen as she truly is: a girl.

This is a deeply moving read. It's impossible not to fall in love with Melissa (Melissa is the main character's preferred name) and sympathize or empathize with her struggles.  The use of the female pronoun throughout really emphasizes Melissa's identity. And the cruelty of some of the children in her class is a microcosm of what trans people face in the world today and how frankly ridiculous it is not to let people just be themselves.

Highly recommended for middle grade readers and beyond!