Here's How It Works
Between January 1 and December 31, 2012, read one book in each of the following categories:
A book with a topographical feature (land formation) in the title: Black Hills, Purgatory Ridge, Emily of Deep Valley
A book with something you'd see in the sky in the title: Moon Called, Seeing Stars, Cloud Atlas
A book with a creepy crawly in the title: Little Bee, Spider Bones, The Witches of Worm
A book with a type of house in the title: The Glass Castle, The Girl Who Kicked the Hornet's Nest, Ape House
A book with something you'd carry in your pocket, purse, or backpack in the title: Sarah's Key, The Scarlet Letter, Devlin Diary
A book with a something you'd find on a calendar in the title: Day of the Jackal, Elegy for April, Freaky Friday, Year of Magical Thinking
The book titles are just suggestions, you can read whatever book you want to fit the category.
Other Things to Know
Books may be any form (audio, print, e-book).
Books may overlap other challenges.
Books may not overlap categories; you need a different book for each category.
Creativity for matching the categories is not only allowed but encouraged.
You do not have to make a list of books before hand.
You do not have to read through the categories in any particular order.

I thought I would try something a little different. I like the idea of interesting title pieces. My tentative TBR:

Topographical Feature -- Valley of Silence by Nora Roberts
Something in the Sky -- Mockingjay by Suzanne Collins
Creepy Crawly -- Sense and Sensibility and Sea Monsters
Type of House -- Palace Circle by Rebecca Dean
Something from Your Pocket -- The Dark Compass by Philip Pullman
Something on a Calendar -- The Lost Summer of Louisa May Alcott by Kelly O'Connor McNees