It is very rare that I read a book, so while I am I had better reply to this thread!
I am currently reading "The sky is your laboratory - Advanced Astronomy Projects for Amateurs" by Robert K Buchheim.
I am using it to broaden my knowledge of opportunities, and learn more detail about what I do now and I already know. It's great. It's helping me choose my next project after photographing all the NGC object.
It's the only book of its kind I know, I don't know of any others that focus on amateur research projects.
