MOBI (Mobipocket) ke mofuta oa e-book o etselitsoeng Mobipocket Reader. Lifaele tsa MOBI li ka kenyelletsa likarolo tse kang li-bookmark, litlhaloso, le litaba tse ka sebelisoang hape, li etsa hore li tsamaisane le lisebelisoa tse fapaneng tsa e-reader.