However, what stood out was the banner at the top of the ad "The most important book of Jewish Thought since Harav Soloveitchik". I could understand the banner if it was a quote from someone reviewing the book. However as an anonymous banner it does seem a little pretentious
I was amused to see that someone asked the same question from the Rabbies at Kipa. The question was answered by Harav Baruch Efrati, who also stated his view that this banner was placed by the publisher without the knowledge of either rabbi.