I love "It's OK if You Sit on My Quilt." I learned a lot from studying that book. I have the original edition.
A place I love to look at patterns is online at Quilters Cache website. I look at a block and then skip to the final page to see the overall pattern it makes. I especially love blocks that make a secondary pattern when combined. Many of her patterns are demonstrated using only 2 or 3 colors. And sometimes it is easy to imagine how it would look in colors/fabrics I would select. If I was looking for inspriation, that's one of the first places I would head.