The Great Pretender: The Undercover Mission That Changed Our Understanding of Madness - Susannah Cahalan

Not only is the title making sense, it's got a ton of layers. As someone with more than one mental illness, this is really hitting home with me. If I had been born in 1900, I would have been committed to an asylum for a series of electroshock therapy and orgasms. Or I would have killed myself. 

 

Thank god things aren't THAT bad anymore. But they are far from okay. Invisible illnesses are shitty to deal with. Nobody believes you are sick.