Rewrite Government Books
The government writes and publishes books and other information on hundreds of topics. Since this is paid by you, the taxpayer, it is free to do whatever you wish with. You should first check out http://www.pueblo.gsa.gov or the Federal Citizen Information Center. Here you will find topics available from Cars to Travel and more. You may want to search and browse around and perhaps you’ll find some topics that could be expanded upon. Also check the Catalog of Government Publications.