What looks like a lovely newly published book full of pictures rather than text is up for sale on Kickstarter:
https://www.kickstarter.com/projects...ook-of-pinhole
It's been totally funded already and the book costs $25 US and the same for postage (the only real downside, although the author says he's taking a loss on international postage.)
I've subscribed as these type of things are a bit thin on the ground.
I look forward to receiving my copy early 2017.
Terry S