What do you do?

> look at books on bookshelf 1

Your bookshelf has six shelves. The second shelf contains all 35 books. Most are related to either nature, or science and engineering. You haven't finished any of these books -- they're all new books you've acquired while in mental care.

Your favourite science and engineering book is Neuroscience: Exploring the Brain, a textbook. You also appreciate the Linear Algebra textbook. There are two other neurology and psychology books, 4 books on electricity and circuits, 4 books on radio communications, 2 books on phone programming, and 2 more books on math.

Your favourite nature book is A Language Older Than Words, by Derek Jensen. There are 5 five other nature philosophy books, 4 field guides, and an ethnobiology book.

Of the remaining eight assorted books and magazines, your favourite would be Bluegrass Banjo.

What do you do?