There have been many books written on the subject. Whats your favorite. Mine is Eugene A. Sloan's 'The Complete Book of Bicycling'
As a side note I found a magazine clipping once which stated that ' ... Rain or shine, he commutes to work on his 15-speed bicycle--a 25 mile round trip each day.'
Whats with 15 speeds. 5x5 or 1x15 ? ? ?