How To Install Calibre 2.74 on Ubuntu 16.10, 16.04

   Calibre is a free and open source e-book library management application developed by users of e-books for users of e-books. Calibre 2.X version is the most powerful release of the Calibre ebook software. The e-book editor supports Android phones, tablets on OS X and support for touchscreen windows tablets.

Calibre 2.74 Changelog:
New Features

•     Amazon metadata download: Allow downloading from amazon.cn as well. To use go to Preferences->Metadata download and customize the amazon plugin to download from amazon.cn
•     Edit Book: Allow disabling the ‘Files already arranged into folders’ message popup

Bug Fixes

•     Edit Book: Fix selected text not being fully highlighted when using the solarized color schemes.
•     calibredb: Fix CSV output for the check_library command not being properly escaped
•     Fix subsetting of fonts whose names start with ‘and’ not working
•     Fix a regression in 2.72 that broke the –start-in-tray command line option.
•     Fix third party plugins that create dynamic context menus not working in linux
•     DOCX Input: Fix images wider than 50% of the page width being incorrectly right aligned even when anchored to the center of the page.
•     Catalog generation: Ensure all citation keys in BiBTeX catalogs have only ascii characters.
•     Get Books: Update ebookpoint and legimi plugins for website changes
•     EPUB3 metadata: Ensure updating metadata never produces empty dc:contributor elements.
•     DOCX Output: Fix an error when converting tables with spanning cells.
•     Nicer error message if the user tries to import data while the content server is running

Improved news sources

•     Frontline
•     Korea Herald
•     Pagina 12
•     Edge Conversations
•     Kitsapun
•     Mobile Nations
•     NME
•     Security Watch
•     Sign on SD
•     Star Advertiser
•     tyzden

Installation instructions:

     Run the following commands in Terminal to install Calibre 2.74 on Ubuntu 16.10, Ubuntu 16.04, Ubuntu 15.10, Ubuntu 15.04, Ubuntu 14.10, Ubuntu 14.04 and other Ubuntu Derivatives:

$ sudo -v && wget -nv -O- https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py | sudo python -c "import sys; main=lambda:sys.stderr.write('Download failedn'); exec(sys.stdin.read()); main()"