GC Bakker wanted to know if the second book would in fact explain why I make changes rather than be another how to make changes book. Despite all the months writing and editing the book, I had to really think about the correct answer to his question. I certainly did show what to change and some basics on how to change it (but it isn't a photoshop manual, despite the one chapter quickie primer).
It would be easy to toss of a glib answer to the why along the lines of "Well, to make the images better, dude!" but of course that is neither helpful or friendly. I do think that anyone can learn from seeing the changes that I make to my images, but I think the short answer is no, this book does go into great detail about why I make a particular change though where there is a problem, it is often identified as to what the problem is - which is a way of explaining the why, all be it in one sentence. What my book does do is point out the problems and weaknesses and what you can do to improve images well beyond simply fixing them.
I wonder if CG really means why make the changes or does he in fact mean that he would like help knowing what to change. It's fairly easy with image problems to say why a change is needed. Over here is a yellow green tinge on the rocks and it needs fixed. The unwritten but implied "why" is that the change is because the yellow green tinge is unnatractive and doesn't balance the colour of the rocks elsewhere in the image. This is an example of what happens in chapter one.
It is a little harder to explain improvements in areas that already looked ok - or at least they did until you see the improved version. I tend to still talk in terms of there being a problem - needs more contrast, should be lighter, highlights need brightening.
Clearly CG Bakker is going to have to look at the book for him/herself to decide if the book is helpful. A few of the chapters are based on previous blog entries in which I took you through the steps in editing an image - all be it improved and edited - but if you check out the previous Athabasca Falls image discussion, you will find the basis for chapter one, the Bowl of Fruit image for chapter 3, for example. Most of the other chapters are similar.
This has been a complex answer to what seemed like a simple question. I look forward to GC Bakker giving us some feedback and further explanation behind what is meant by "Why".