Invest in this:
http://www.amazon.co.uk/gp/aw/d/1554076013Outdoor friendly as covers are rubberised and pages glossy. Comes in at 600 grams so not best 'carry-along' book for ULers, I just read bits while at home.
As above go on a first aid course, in the UK basic first aid runs about £50 for a few hours training.