First of all full disclosure, Charlie and I have been friends for the last 25 years and I am acknowledged in this book. The river he talks about was one he first visited in my garden and we frequently bunked off school together to explore it.
That aside I still love this book and despite knowing Charlie for most of his life, I still learned a lot. Many people looking through this will assume photographer's of this calibre have some magical, 'natural gift' - that somehow they were born taking great photographs. I don't believe there is such thing, an incredible amount of hard work goes into this - I can tell you, as I was there, at least some of the time (especially in the early years). Charlie would come & stay for the weekend and get up at 4am and stay in his hide until midday. - standing still for up to 8 hours at a time, sometimes up to the top of his waders in freezing water. Often he would see NOTHING and do this the next day. Then he'd be back the next weekend and do it all again. This would go on for months - Sometimes he'd get a glimpse and occasionally a blurred photo. Then there were years of experimental shots using different ways of getting the kingfisher where he wanted it using assortments of baths, fish tanks and custom made devices. Basically - what you see in this book took the best part of a quarter of a century to get. The results speak for themselves.