Hello Linux Geeksters. As you may already know, Calibre is an open-source book management software, with many interesting features including e-book conversion, e-book viewer, library to ebook reader synchronization and support for the most popular eBook formats, including: ebup, cbz, mobi, fb2 . Being multiplatform, the app works on Linux, Windows and Mac OS X.

The latest version available is Calibre 1.23, which has been recently released, coming with a few changes and improvements. For more information, see the official changelog.
In this article I will show you how to install Calibre 1.23 on Ubuntu, Linux Mint, Elementary OS and Debian.
There is no repository available for Calibre 1.23, but the developers provide us a python oneliner for installing the latest Calibre version. Also install the dependencies, in order to avoid installation issues.
$ sudo apt-get install glibc xdg-utils python
$ $ sudo python -c "import sys; py3 = sys.version_info[0] > 2; u = __import__('urllib.request' if py3 else 'urllib', fromlist=1); exec(u.urlopen('http://status.calibre-ebook.com/linux_installer').read()); main()