Let's tie knots, Marty-style!
In April of 2015 Marty's third book, 50 Knots You Need to Know was published by Cico Books.
Actually, "50 Knots" is quite a lot of what it sounds like, though it also features some fun descriptions and scenarios leading up to each intensive and beautifully-illustarted set of knot instructions.
The book came about because, as it happens, Marty loves knots, and his editor was looking for a book about them. In it's original form, the book was called "Nerd Knots," and the scenarios were a good bit nerdier (think orcs instead of cowboys), but the sales department thought it was less cool that way than Marty and his editor did.
It turns out that for once, sales people may have been right. The result is a beautiful and practical little book, with lots of nifty knots and fun knot set-ups.