The Handmade marketplace is the perfect book for me. Written by Kari Chapin with help from lots of lovely crafty experts, it is full of really good tips and ideas for selling your crafts online, at fairs and in shops as well as tips on blogging, taking photos and a million other things that I won't list here.
It's full of cute little illustrations by Emily Martin too. So pretty!
Although aimed the the American marketplace, most of it can be applied to crafty types across the world and definitely makes it worth the £7.07 I paid for it. Good old Amazon.