The Story of Zen Breakfast
I first fell in love with the work of Kurt Vonnegut, Jr. through his book Breakfast of Champions. For a long time that book was my answer to the question "If you were stranded on a deserted island and could have just one book, what would it be?"
Many years later, I found the book The Holy Man, by Susan Trott. Breakfast of Champions had competition for "deserted island book." Although Ms. Trott's book doesn't specify a religion for her holy man, she sites Buddhism as an inspiration for the book, and for me it has the quality of the lessons found in Zen Buddhism. I was hooked.
Both of these books are among those I turn to again and again.