that a copy of word be present on the system to help with the conversion. Some users might wonder why .doc isn't used more often as an eBook format. This is because using Word to read the document is not a very satisfying experience since it is so easy to accidentally change the document and scolling is not the best way to read a book. Some versions of Word have a review mode that can provide a reasonable reading experience for these documents. Having said that, there are some eBook Readers that do support doc file reading however the additional complexity of the format can cause slow page turns. There are many other word processing programs that can read and write files that are .doc compatible however some of the .doc features may or may not be supported. This can cause problems when trying to read a .doc file with one of these programs. In addition the eBook translation programs will not look for one of these programs to aid in the translation. The main work around is to use RTF files as source documents. This format is designed to allow the exchange of documents between different programs and operating systems. All Word programs can save files in RTF format. Every change to the DOC file format has a corresponding change to the RTF format. Readers that use RTF will ignore anything they do not understand.