Not as flashy but more effective in just getting to the ground. But still, non-judoka should find some of the basics in here interesting, especially the grip breaking and the belt grabbing stuff. So even if you don't plan on using your attacker's clothing against him, at least learn how it can be used against you. This book is written by Neil Adams who also authored Armlocks and Tai-otoshi for Ippon. Adams, one of the best Western judoka to date, was known for being a superb, if somewhat conservative, gripper.
Some basic definitions are in order.
Gripping skills are known in Japanese as kumi-kata. I don't know. Head control and body contact are key and Adams notes that physically stronger players can often use these to good effect as they can be forced if technique is less than perfect. These rely more on timing and quickness than body contact. Interestingly, these are the throws that tend to rely most on the use of the gi, while the overgrasp throws often exist in modified form in wrestling.