Do you want to learn more about reading dog body language and what good play and bad play looks like, so you can keep your dog safe when playing with other dogs? (diamondsintheruff.com)
I have worked in dog day cares and have a lot of experience in reading dogs body language and behavior. (caninejournal.com)
(For resources on basic understanding of dog body language, please see the «points» at the end of this article). (petpeoplesplace.com)