The Wavy Bookcase is designed by Guiseppe Bavuso for Alivar. The shelves are wavy, both horizontally and vertically, and it's really a special shelf that stands out. With a shelf like this it is important to place the books and items with care, so it doesn't look to cluttered.
I like this shelf very much, and it's really something different for people who doesn't want something simple that everyone else has! Check out www.bavuso-design.com to see other things he has designed.