Calibre is a cross platform software suitable for e-book developed by Kovid Goyal. The software allows the user to add their e-books into Calibre library and can also perform actions such as editing, viewing an existing e-book and can also create a new e-book using this software. However e-books of particular formats and appropriately licensed e-books can only be edited whereas other formats and licensed e-books has to get special permission and digital rights management in-order to edit. It also allows the users to sort the e-books based on alphabets and meta data fields, thereby users can easily get hands on any books from their Calibre library. The e-books can be loaded easily by using two easy methods, it can be either side loaded directly or can be synced from their cloud storage into the user’s library. The calibre e-books library storage can also be remotely accessed when the user stores his/her e-books in a cloud storage such as Google Drive, DropBox and others.