With ALL the Public Domain works you'll find, you be able to:

Republish the works as-is in print form
Republish the works as-is as a downloadable e-book
Republish the works as-is along with other books on CD
Use the content to develop Study Course with workbook
Use the content to develop How-to Course
Videotape How-to Courses or Training Classes
Update or rewrite thematerial for new products
Use portions of different books to create new thematic collection books
Use the content to develop Mini-Courses offered by e-mail or online
Use the content to develop Homeschooling curriculum
Use excerpts to make Quotes books
Record reading the content as audio books
Use the content as e-zine articles
Use the content for web pages along with AdSense
Use excerpts to combine with original material for a new book
Use excerpts along with images to create flash movies
Use a collection of PD books to create a membership site
Use referenced authors and books to discover new PD materials
Use poems or quotes to create posters
And MUCH, MUCH more!