I imagine the celebs are likely being paid for their name and that’s about it. I would question if the book is actually good, or if it only has a market because

I imagine the celebs are likely being paid for their name and that’s about it. I would question if the book is actually good, or if it only has a market because of the association with them. To your closing question, new parents are biased to their own experience and media consumption habits, if a celebrity or influencer has enough of a following then there’s likely a person with a produce to sell looking to have a partnership with them for that exposure. Imagine all the kids growing up online in the past 8 years, they will have kids in 15-20 years, imagine Mr Beast or PewDiePie promoting his own kids books in 15 years to their markets.