I actually bought this book way back in early 2011, not long after booking my 'trip of a lifetime' to the Maldives. I had learnt to dive in 2010 and it wasn't long after that I started taking 'snaps' of the under water world.
Initially I was happy with my little snippets of digital history but having got more and more involved with marine ecology and joining various diving and reef keeping forums I quickly became aware of how lacking my photos were in comparison to some of the art out there. A fellow diver mentioned Maria to me and I came across her recently released book, being a novice diver and photographer I had neither the time nor inclination to spend thousands of pounds on a huge SLR set up and loved the size and simplicity of my compact. This book was the ONLY book dedicated to the use of compacts underwater so I took the plunge and purchased it, I literally read it cover to cover in a weekend and started practising with land based subjects straight away.
I took my (now departed) Fuji on my two week trip to the Maldives and managed to come home with a number of pictures that weren't all blue, out of focus and boring, rather the opposite. Of course it didn't turn me into a professional over night but it gave me the confidence and knowledge to turn the mode dial from 'underwater' to 'manual' - something I had never done before, and I now have two little canvas prints hanging in my hallway as a testament to the improvement in my knowledge and skills. The book really explains in basic terms what the different settings do and how they change the appearance of underwater pictures with plenty of pictorial examples. Before reading this book I had no idea about apertures and ISO, it was all a foreign language. As a result of digesting this book I have also changed my land based photography approach and have now ditched the Fuji and have a shiny new Canon set up ready for two diving trips this year.
The book also covers lenses, strobes and the different types of underwater photography so will certainly see me through my next two or three upgrades. Maria's website has lots of stunning examples of her and her course guests work, you certainly have to admire the fact that a total of 15 course guests of Maria's have won photographic competitions over the past few years, surely that is some indication of her knowledge and passion in this field. I don't see how anyone could be disappointed with this book.