I'm a mechanic, so Scott Parr's "Tales from the Toolbox" is pretty high on my list. Further up: "The Man Who Loved Bicycles," by Daniel Behrman--my Torah, Bible, and Koran combined. Robert Silverberg's analogy "Car Sinister," not a word about bikes, but about transportation issues in speculative future societies; it's a sci fi collection. "Breakaway," Samuel Abt's 1984 book on the Tour. I like this because it was a first American's journalistic glimpse inside pro cycling's culture before it changed to more closely resemble US pro sports. "Bobke," because Bob Roll can write about a European sport in an almost entirely American vernacular. "The Paterek Manual" because of it my first frame was straight, sound, and safe.