Recently, I finished reading Thom Powell's 2003 book The Locals: A Contemporary Investigation of the Bigfoot/Sasquatch Phenomenon. I had heard from some researchers that I know that this book is one of the best on Bigfoot…. and it is!
Powell discusses man different aspects of the bigfoot phenomenon. He discusses infrasound, psychic sasquatch powers, bigfoot as interdemensional beings, bigfoot with UFOs, etc. He has chapters about sightings he investigated himself, and a chapter about the Skookum Expedition of 2000. During that expedition, the BFRO team found an impression of a lower body of a sasquatch.
All in all, I'd totally give this book a 5/5 stars. Anyone who is interested in Bigfoot should read it. If you don't believe in Bigfoot, read it too. It might just change some of your opinions.
You can check out The Locals on Amazon.com.