Here’s a nice, if not new, video on dog body language. It’s one of my favorite things to learn more about and valuable knowledge for anyone who’s around dogs at all.
https://www.youtube.com/watch?v=bstvG_SUzMo&feature=youtu.be
Since Chico is a dog who very often needs space, I’ve had to learn to read him and that’s made me curious about learning to read other dogs too.