[Bombphoon]

This book is one of my favourite - if not favourite - WW2 aviation books. Absolutely packed with details and rare photos - including shots from the cockpit taken by the pilot as he is attacking coastal targets. It is the definitive book on the subject and if you are serious about the subject, you will have it on your shelf. You can get it for under a fiver if money is an issue, but you won't regret it if you are studying/researching the subject.