TK3 Reader is a multimedia book reader that allows users to view electronic books that are made with TK3 Author. TK3 Author is a type of an eBook software that produces files that may contain text, music, and images. Aside from being a fully functional reader, it also features other useable tools such as sticky notes and annotations. It also allows hyperlinks to be clicked on and be directed to the Web. It has a highlighter tool to help users emphasize important key phrases. It comes with a search function that makes it easier for users to browse through text. The program is downloaded as TX3 Reader.exe. It runs on computers with operating systems of Windows NT 4, Windows 98/ 95/ 2000, Windows NT or Windows XP with at least 64MB RAM. This software can also work on Mac OS X 10.0 and Mac OS X 10.2.