Night

I had never read Elie Wiesel's grim memoir before now...

I read the 25th Anniversary Edition 1986 Bantam paperback in the preface to which Robert McAfee Brown wrote: 

"Lean, taut, and sparse in style, employing no tricks, but providing avenues of escape for its readers, it remains today a book we must read and reread if we are to accept responsibility for our past and to learn from that past for the sake of our future."

Can't improve on that.

Read this book.