"We need secondary reliable sources to select which parts of the book or ideas are noteworthy"  you do not need secondary sources to describe what the content of the book itself is. The book itself is the source for that. You are distorting the policies you claim to be following. This appears to be an attempt to simply remove all content from the page, including perfectly neutral content that simply describes what the book says. I note that you've been T-banned recently for similar behavior. If you edit the page again without discussing this in detail before making further alterations to remove perfectly reasonable content, I will bring this up for arbitration immediately.