"The Wild, Wonderful World of Parachutes and Parachuting". If nothing else the pictures are worth it. It has stills of a guy with a main /reserve entanglement being caught in a packing mat. It also has pictures of Kittinger's jump. It also has a picture of a main entangled with the tail and airplane and jumper landing under the jumpers reserve. It has lots of that sort of things. It is out of print but Amazon got me a copy.