I think it is a well done book and I refer to it frequently. I got it as part of a course that was put on at a local yacht club. Terry was the presenter. I think I paid $120 for the course with the book included and I thought that was worthwhile even though I had a good idea of everything beforehand.
tidbit of information can save you the book cost and more.
I did not use the coupons - they are for purchasing
if I recall
correctly. We had a local chandler do a one time special for the course participants.