Great! I will read it. Send me a link when it is ready!
What I find it is kind of missing in PrimeNG is unit testing. May be you can cover it in your book. There is no no single unit test in their repo and when I was working on my toy project with PrimeNG datatable I had to create a unit test for my component that used datatable. I did it but I expected to find an example inside PrimeNG repo. Here is a link to the unit test: https://github.com/ipassynk/ristorante-fornello/blob/master/src/app/menu/menu.component.spec.ts