From my experience, a Xoom Android tablet is really good as an eBook reader. Xoom is very light-weight, easy to carry, and is about the size of a pocket-size book. You can read eBooks and PDFs with no problem.
1. On your Xoom's home screen, touch Apps > Books. And touch "Shop" to browse and select books.
2. Touch a book to view more information about it. You can touch "Try" to download a free sample, or touch "Buy" to purchase the book to your library.
3. In your library, you can flick left and right to see more books. Touch a book to open and start reading. While reading the book, turn the pages by flicking them.