Downloading BookShelf 5.7 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Productivity Tools, more precisely E-book Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This Mac app was originally designed by Leo Mesentsev.
From the developer:
BookShelf is a personal electronic books database and organizer.
Please Note that it is not a book reader, it is a BookShelf organizer.
Contains QuickLook plugin for epub and fb2 formats.
The latest version includes new OpenGL animation, popovers with book's info, and small bug fixes.
You may want to check out more software for Mac, such as Oxford Learners Bookshelf, Any Flip or iBooks, which might be related to BookShelf.
E-book Tools
Bookkeeping-Cataloging