Welcome to TE,I think my fave book when I first started was Selene Yeager every womans guide to cycling ,she has some other great books about training and nutrition.Another thing I did was check out a local cycling clubs' beginning womens ride. I learned lots and had fun. Some clubs around here do a series of rides to help train for centuries. You also might want to see if any local bike shops have newbie classes to take. Where are you from? I'm sure there are people here that can help you find clubs and shops. Good luck!
I like bikes, sometimes more than my husband