My Book Shelf helps you keep track of books you've read or want to read. You can entire books in a variety of ways.

1) By typing in the information.
2) By entering an ISBN number (requires a free account with isbndb.com)
3) By importing a csv list or a list of ISBN numbers

Once the database is populated you can:

1) Search by any of the entered criteria.
2) Export the data to a csv file.
3) Update any information
4) Delete a book or a collection of books.

If people find this app useful more features will follow.

Enjoy :)