Guide to Raising Money From Angels
This is a bit old information, but I post it here anyway since I found the contents of this book still valid for angel investment environment today.
The book is called Guide to Raising Money From Angels, which is written by an established entrepreneur / angel investor Bill Payne.
As mentioned in its preface, the book is not a template for writing business plan, a worksheet for valuing your company, nor a set of legal documents to guide an angel investment round.
However, the book gives very insightful knowledges to both startup founders and angel investors. In fact, I read it from both perspectives and enjoyed a lot.
I highly recommend this book to founders and co-founders starting their business even if they are not raising money from angels.