this book will be seen 2 ways.
1. she's a saint for having put up with Jon, raising the children, and writing (did she really write those?) such beautiful letters for them to have when they're older.
2. she's continues to sell out the children for her own personal gain.
.. it's clear (to me, anyway) that Kate's opportunities in the entertainment industry are dwindling without the children. Nearly everything she's tried hasn't been a good fit for her. I don't think the concept TLC has come up with will be any better.
I couldn't imagine a scenario where I'd writing private letters to my children and selling them for profit. In fact, I'll say it. I'd never write letters to my children, publish a book, and sell it for profit. I seldom use the phrase "I never ... " because I've been parenting for 20 years, I know better. LOL. But I'm quite certain I'd never do that. ever.