I recently found out about iBookshelf and I am loving it. I am an avid reader who has tons of books in all formats. I now don't have to worry that I might buy a book that I already have.
One feature that would be nice is a way to indicate if the book is part of a series and if so, which book number it is in that series.
Thank you for the wonderful app
The "duplicate" detection only checks to see if an item has the same UPC/ISBN code. If it does, then it disalllows the duplicate.
The next release will warn about the duplicate and let you choose to proceed or not.
Right now I'm adding more tabs to support different sorting on the various data items. After that, I'll be adding more data fields. It's coming SOON!