I recently checked this book out of the library and I'd recommend it to any photographer, not just street photographers. "On Street Photography and the Poetic Image" By Alex Webb and Rebecca Norris Webb, published by the Aperture Foundation. The book is full of excellent photos by these two photographers, and a few by other photographers that they find inspiring. Each image is accompanied by a few paragraphs of text discussing what went into the images and general thought-processes and techniques that go into their work. This is not one of those tedious how-to books that rehashes the same old rules of thumb and hackneyed aestheticism. Instead it is a selection of the core ideas and experiences of a couple of very talented photographers, along with really great images from decades of work. I haven't finished the book yet, but so far I like it a lot. The book toggles back and forth between comments by this husband and wife team, so it also has the advantage of presenting two points of view. It just provides a taste of a few ways of approaching the kind of exploratory photography that a lot of Fuji-X users like to do. It's a small book, but a good one.