An easy to use open source (GPL) book cataloging application. An open source book cataloging application (source on github). Books can be added manually, by ISBN, or barcode. Version 4.0 is a major upgrade: remember to backup and export your existing catalogue before you upgrade! Features include:* Sorting by author (last name), title, series, etc.* user-defined sort and list styles* Search Amazon, Google Books, goodreads and LibraryThing for data* Searching* Thumbnails (download, gallery or camera)* Loaning books* goodreads synchronization* Export and Backup* Bookshelves (books can be on multiple shelves) Want a wishlist? Just create a bookshelf called 'Wishlist' and start adding books. Please email me (below) if you have any issues after an upgrade. Release History New in 4.1.5 * improved import robustness* fixed bug introduced by 'comma-in-bookshelf' bug fix New in 4.1.4 * minor bug fix in bookshelf maintenance New in 4.1.3 * fix for long-standing bug during rotation while editing a book* fix for for long-standing bug in date parsing when in non-english locales New in 4.1.2 * Translation updates (Robert Wetzlmayr)* Bug fix for 'read' date import from goodreads New in 4.1.1 * Fix bug relating to commas in bookshelf names creating extra shelves* Removed use of onBackPressed to ensure compatible with Android 1.6* Clarified strings in 'back' code New in 4.1 * New style options: location and date read* Sharing can now send via any app that advertises the interface (eg. mail) (filipeximenes)* French translation updates (Djiko)* If fields have been edited, and 'back' is pressed, ask the user for confirmation (filipeximenes)* Assume book is read when importing from goodreads if the user has rated it* Change install location to avoid problems with encrypted SD cards* Bug fixes in file import and data import New in 4.0.7 * Fix bug in Google Books URL causing wrong books to be returned* Re-prioritize data sources based on reliability and the data returned* Make Comments field auto-resize* Show recent authors in author pop-down list* Minor bug fixes New in 4.0.6 * When adding books, scanning or typing an existing ISBN allows you the option to edit the book.* Allow ASINs to be manually entered as well as ISBNs* German translation updates* Bug fixes when cropping cover images New in 4.0.5 * fix bug when updating a book: 'read', 'rating' and some other data may not have been saved correctly New in 4.0.4 * search now searches series and anthology data* allows non-numeric data entry in series position* better sorting of leading numerics in series position* various esoteric bugs fixed New in v4.0.3 * ISBNs are now validated when searching or scanning* Loaned & Not Loaned list now includes all books* Added preference to hide list headers * Use current bookshelf when adding book* FastScroller sizing improved* Fixed various bugs New in v4.0.2 * various bug fixes New in v4.0.1 - many bugs fixed * Preference to disable background image* Added book counts New in v4.0 * New look & startup page* Synchronize with goodreads* New and user-defined sort styles * Better memory usage (eg. in large collections)* New preferences* Better detection of series names new in v3.8.1 * Italian translation added* Crash during searching fixed* Crash when entering locations fixed New in v3.8 * Fixed several defects (including multiple author's and author prefix/suffix's)* Fixed issue with thumbnail resolutions from LibraryThing* Changed the "Add Book" menu options to be submenu* The database backup has been renamed for clarity