I tend to find most of the official scientific studies of great value, and I also appreciate other people’s views of the same studies. While the Air Force flat out lies in its assessment of Project Blue Book Special Report #14, I am still fascinated by the cases they do reveal, and their misinterpretation of the data, that most people just accepted without challenging. Of even more interest to me is Stanton Friedman's take on the report. If you've ever read PBBSR #14 (if not, you can order it from stantonfriedman.com ), you know that it is full of a lot of charts, graphs, and solid data, for a fair amount of decent cases. Mr. Friedman uses the report frequently in his lectures, and the way he points out the discrepancies is both entertaining and informative. I would recommend reading all you can get your hands on by him in fact!
Another cornerstone of UFOlogy, are the "MJ-12" documents. I find it remarkable that so many books and articles have been written about this small collection of documents. There are a lot of reasons why I believe in the validity of the documents, but I've also read many different accounts before I came to my conclusion.
Of course there are a lot of great books that have excellent accounts of cases, and are also fun to read! My personal favorites are by Noe Torres and Ruben Uriarte, and not just because they are friends! I bring home a LOT of books, and they usually lay around for family and company to read. Some get picked up, some only I have interest in. When I brought home a couple of Noe's and Ruben's books though, my family jumped on them! Aliens in the Forest and The Coyame Incident were big hits at my house!
I have to be a big fan of anything that grabs people's attention, and sparks their interest in the subject of UFOs! The more you know about the subject yourself, the more you can answer people's questions knowledgeably, and help direct them to sources where they can read more.