Enjoy reading plain text books nicely formatted, with eTextReader
eTextReader is a free utility that will let you read plain text files in a book-like manner.
You can customize window size, font style and font size; page breaks are inserted automatically.
You can set bookmarks (limited), find words or phrases, or edit the text with an internal text editor.
A table of contents can be created automatically. The program lets you import text from several file types, including RTF and HTML, and open files directly from zip archives.