Joe Kurmaskie is my favorite - "Metal Cowboy" and "Tales From the Road Less Pedaled". His view and approach is reflective and insightful.
Josie Dew's "Travels in a Strange State" gives a uniquely British perspective of American culture. Her wit and humor put me in stitches. I especially love the way she mocks the American accent.
Willie Weir's "Spokesongs" and the regular work he does for ACA are also good. His writing is more factual and less intruiging than Joe's, but anecdotal nonetheless.
"The Noblest Invention", from Rodale Press, is a tribute to the bicycle in every form. Amazon has it well underpriced.
"Bicycle Science" from MIT is the nitty-gritty for those of us who didn't go into convulsions in Calculus or Physics. I love it. Makes me want to spend time with my torch and milling machine!