josef chladek

Some books on the Virtual Bookshelf are free to view. Older or rare books, however, are “locked” (you will only see a small image of the book and a single spread). To unlock them, a small yearly donation (starting at €12.50) is required. By donating, you’ll gain access to all 3049 books with 42026 spreads. You’ll also enjoy a slideshow of book spreads that’s twice the size, the ability to add favorite books to your private bookshelf, create a custom slideshow from different books, view it fullscreen on any device, and more exciting features to come.
You can donate any amount via PayPal or other methods—just register on the right (or below) first, then upgrade your account at any time. Your contribution helps cover hosting fees, backups, developing new features, and expanding the collection.

To see an example of an unlocked rare book, click the following link to view Blossfeldt's "Urformen der Kunst (Artforms in nature).