Mobi: .mobi file, compatible with the Amazon Kindle application
PDF: .pdf file, compatible with the Adobe PDF Reader application
TTF: .ttf file, TrueType font standard developed by Apple and Microsoft
Word: .doc and .docx files, compatible with the Microsoft Word application
Apple, Microsoft, Word, Windows, Adobe, Amazon and Kindle are trademarks of their corresponding corporations and their use is not intended to be or suggest affiliation with or to be an endorsement by them.