It's late, and I'm not really up to a discourse on the 'loveliness' of Kate McCann's book
The subject you and I have been debating is the primary reason for the book having been written in the first place
You said it was 'primarily' written by Kate McCann for herself ... a necessary personal catharsis
I said it was 'primarily' written for financial reasons ... to pay the ever growing legal fees that could not have been met without the book having been written
I guess neither of us can definatively be proven right, but let us, at least, agree that there is no blurring of the lines where the question of 'primary' motivation is concerned
The fact that the book focuses so heavily on Kate, her feelings, thoughts, ideas, and has a prose style that is heavily inflected with emotion and subjectivity, shows that emotional reasons were very important in its creation.
Yes, it was going to make money. But if it had been written with investigative value in mind, it would have been more fact and less emotion focused. As redblossom mentions, for example, no reference to the Smith e-fit (though they were not mentioned anywhere at that point so for continuity's sake Kate would have had to omit them).
This book was not merely a money spinner, or a setting straight of records; nor was it an homage to Madeleine whose name is mentioned far less frequently than one would expect it to be. It is an emotional mother's emotional response.
Note that she is the author - not Gerry or a joint project.