Continuing #BannedBooksWeek with an amazing mid-century read! Keyes originally published as a short story in 1958, and later adapted as a fiction novel in 1966 - both receiving awards and critical praise. I stumbled onto this book last year (somehow was never on my radar throughout school) and loved it. In it, Charlie is an intellectually challenged adult who enters into a scientific experiment which increases his IQ. His self-written progress reports fascinatingly journal the amazing and sometimes scary changes Charlie undergoes. 
 A tip when shopping: there are "PG," edited versions floating around, so be careful if you're looking for the original novel!