Ipad ebooks is a device like our mobile phones specially made for reading the ebooks. These ebooks are comes in different file formats and different software is needed for reading for different file formats. Following are the some of file formats as follows. Kindle eboks reader is one of the ebook formats and it comes with the extension of .azw file. This kindle ebook reader supports for various platforms so that people can download and install in any of the operating systems like android, iphone, symbian and so on. People can not see this file while the downloading is in processing. Second one is Archos diffusion and it comes with the extensinon of .aeh file. The ipad ebooks file on this format can be read with the help of Archos players. Main advantage of this Archos diffusion file is as it accepts the different formate of files as input like audio, video and text files such as pdf, mp3, wma, wmv and so on. This reader provides lof of advanced options such as searching option which helps to the readers to navigate to the particular content on the entire book and book marking option so that readers can mark the page on which today completed. These things will helps to the readers for easily navigate to the previous read places. Another important file format of this ipad ebook is compressed images. This is most important as compressed images contains lot of image files and these files are comes for the comic books since these comic books are made up of lot of images and little bit text files. These compressed images books files comes with the extension of .cbr called as RAR files, .cbz called as ZIP files and so on. These files are compressed as a single file in order to reduce lot of memory since which is easy to send over the internet. Like as there are lot of file formats and people should know more before going to buy this nonfiction books.