calibre is a free and open source e-book library management application developed by users of e-books for users of e-books.

New Features
* This realease is mostly a bug fix release to fix various things that got broken by all the changes in 0.7.36
* Tag browser: Move the configuration of the sub-category grouping from tweaks to the Preferences dialog
* Tag browser: Allow changing the sub-categorization scheme from the right click menu

Bug Fixes
* Fix regression in 0.7.36 that caused the Tag Browser to break if you have items in it with empty sort values
* Catalog generation: Fix various regressions introduced in 0.7.36 on windows
"Database integrity check not working after catalog generation. Catalog generation failing with a file in use error. Spurious question marks appearing in the catalog"
* Catalog generation: Work on a copy of the library database so as not to lock it
* Catalog generation: Handle merge of comments + custom field when custom filed is None
* Fix regression that broke sort_columns_at_startup tweak in 0.7.36
* Tag Browser: Fix the Manage X items in the right click menu, which broke in 0.7.36
* Tag Browser: Fix grouping by name for authors
* Nook color: Fix main memory and SD card swapped in calibre
Closes tickets: 8159 [External link]
* Fix regression in 0.7.36 that broke PDF Output when specifying a cover
* Catalog generation: Fix regression in MOBI catalog that caused it to not appear as periodical on Kindle
* Fix regression in 0.7.36 that broke opening the book details dialog by double clicking on the book details panel

Program Information Category: Tools and Utilities Type: Free Version: 0.7.37 Size: 37.2MB Works on: Windows, Mac, Linux Product page: here