Hi, my name is Brian Koser, and I have a problem. I can’t resist used book stores, used book sales, flea markets…to be completely honest I even browse through the used books at Goodwill. 😳

Sadly, Melissa suffers from the same affliction. Happily, we comfort each other by purchasing books. We’re up to 542 now. How do I know the exact number? Let me introduce you, fellow book-lover, to a handy little Android app: the aptly-named Book Catalog.

This app lets you create a personal database of books. Books with an ISBN barcode can be scanned in; you can also type the ISBN code or title to enter books. The other killer feature for me is that it synchronizes with Goodreads, the social network for readers. With Book Catalog I can avoid coming home with a stack of books, only to realize that we already own half of them. That’s why my August creators donation went to Philip Warner, creator of Book Catalog.