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 multi-platform, the app works on Linux, Windows and Mac OS X.

The latest version available is Calibre 1.41, which has been recently released, coming with changes and enhancements. Among others, it comes with a new tool to set metadata in the actual book files, via Preferences->Toolbars and Embed metadata, got some features for customizing the toolbars, an option for creating empty EPUB files, a tool for removing the unused class attributes form the HTML files and better support for unicode characters has been added for writing and reading metadata to RTF files. For more information about this release, see the changelog.
In this article I will show you how to install Calibre 1.41 on Ubuntu, Linux Mint, LXLE, Elementary OS, Debian, Kwheezy, Pinguy OS, Crunchbang and their derivative systems.
There is no repository available for Calibre 1.41, 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 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()"
The installation script downloads and extracts the latest Calibre installer, and installs the app in /opt/calibre, by default. But the user can easily change the installation destination.