Stitch, Cloth, Paper & Paint by Angie Hughes, is a mixed media book with lots of inspiration for the adventurous quilter and stitcher. She guides the reader through several techniques (preparing the surface; machine stitching; hand stitching; and making your own embellishments) and then supplies three projects to try. The photographs and instructions are well done. Each step is explained so that you can create your own special works of art. Also check out her blog.
The second book is Reflections of Nature: The Art and Embroidery of Jane Hall. This is not a 'how to' book but one that lets you into her artistic world. It explores her passion for embroidery, the materials and various techniques she uses. It is also an ideal source of inspiration for textile artists and embroiderers of all skill levels. You can watch a short video of Jane at work.