I have been stacking up on books for logo design and scouting dribbble fairly intensely.
I read (and loved) David Airey's book Logo Design Love, but what I am really looking for at this stage is a book that in lays down the principles for minimal logo design covered in this mini course.
edit: I have been studying illustration and creative drawing, but in the course, you can see that shapes are used to create space/negative space, and learning the mechanics of that technique is what I'm looking for from a book.
edit 2: Reading some of the comments/reviews from this thread as well as of the Mini course's review thread, what I'm looking for insight specifically on is logo gridding. Apologies for not being clearer sooner.