This book has it all if you want to lear how to tow any aircraft that is towable! Want to know if your aircraft is towabe? read the book! Want to understand how winching works? Read the book! Want to make a winch yourself? Read the book! Want to lean how to... or improve your towing-skills. Read the book! Want to improve your flight under tow? Definitly read the book! I have been a paraglider under tow for over 2 years before reading this book, and i can tell you now that i have completely changed the way i fly under tow! Moreover i have a better insight in what happens when towing and i can share this knowledge with our new-born-tow-pilots and explain them a lot better what they are doing and better what to do when things are not going right! The only remark i have is that because the book covers all gliders, (paragliders, deltagliders, sailplanes...) you sometimes need to skip a lot of the pages as they may not particullary be of interest to you. My advice: If you fly under tow: read this book!