At present, yes, we fight over Google Books and the opinions differ a lot. The possible agreement between Google and representatives of publishers and authors in the United States is controversial in other countries. Background for the coveted Google Books eingräumte law books, the scan still subject to copyright protection. The proceeds from the sale of such books are paid to the copyright holders to 63%.

In my search for websites with free books, or even possible reading rehearsals, I did find a few sources:

• www.europeana.eu - the EU set up virtual libraries. Collection of movies, pictures and books whose copyrights have expired. Is still under construction.
• www.libreka.de - German platform similar to Google Books. No free books, it can be scrolled only in the books on the first pages. A collection of books whose copyrights expired is missing!
• books.google.com - now also many German-language titles. Anyone interested in books they can read up or possibly find a review as a purchase decision.
• gutenberg.spiegel.de - the Gutenberg Project was founded in 1994 and includes more than 5400 books. Included are works whose copyright has expired.
• www.digbib.org - a free digital library of works that no longer exist on copyright claims.

When does the copyright?

This is regulated in Germany, the Copyright Act of 09.09.1965 (Federal Law Gazette I p. 1273) as amended by Article 83 G v. 12.17.2008 (BGBl I p. 2586)

§ 64
The copyright expires seventy years after the death of the author.