No, they did not ask about my book. They can take a look at the book offline. There's no need to spend time in the phone screen talking about it. In any case

No, they did not ask about my book. They can take a look at the book offline. There's no need to spend time in the phone screen talking about it. In any case, he was not applying for a book writing position. I actually had three different phone interviews there. all failed because of my (obviously lacking) knowledge of implementing binary searches. If a candidate cannot answer a basic CS question, then the process usually ends after the first phone screen. He probably got two more chances because he wrote the book.