Books to look for about moon/mars/ufo's conspiracy

Hi everyone, Im not sure if this is the right area to post this but... Im looking for a few titles of good credible books on ufo's, mars and moon cover ups etc.

here are a few I know of

"Dark Mission" - Richard Hoagland

"Hidden Truth Forbidden Knowledge" - Steven M Greer (not in book stores)

"Cydonia: The Secret Chronicles of Mars" - David Flynn (not in book stores)

Can anyone give me a few more I can look for?

Thanks a bunch!

Check out books by Timothy Good. 'Need to Know' For example.

Also a lot of interviews available online.

Cool thanks!! I just picked up "Dark Mission" today.....looks like a good read.