As a newcommer to dinghy racing I hoped this book would offer advice beyond sail and boat trim. The book concentrates on the effects of wind and current/tide plus positioning yourself realtive to others to achieve the best outcome. So it's exactly what I hoped? No.
Unfortunately, the text is full of specialist jargon that isn't explained (there is a glossary, but it's far from complete). There's a load of excellent digrams to illustrate each tactic, but the text isn't tied to the diagrams so you can't work out who is doing what, when and why. There's also a huge number of photos, none of which seem to add anything to the text.
Perhaps the best piece of advice that I've come across so far is practically at the start of the book: "To make Tactics [this book] win races, boat speed and boat handling have to be as good as the best ... One of the assumptions in this book is that our boat handling and boat speed are at least as good as the boats in our race."
If you already have significant race experience, this may be an ideal book for you, but it's not for the novice.I will persevere with this book, but the message is clear get good with the boat first.