I have a few more, but just didn't include them in the list. Whenever I can I look for different ones in bike shops, used book stores, and some of the larger independant book stores. It's taken a while to collect them plus find time to read them but I try to keep with them.
Right now I am reading Thomas Stevens' book Around the World by Bicycle written in the 1880's. It was just recently republished and available from bookstores. It's a long read with amazing detail. This guy rode around the world first and had pretty bad equipment, not to mention almost nonexistant roads!
Wells