[ralfd]

Do you really think J.K.Rowling is under pressure by anyone?

Beside, authors like to write under pen names. Stephen King used Richard Bachman for that, but was also outed:

http://en.wikipedia.org/wiki/Richard_Bachman

> He says he deliberately released the Bachman novels with as little marketing presence as possible and did his best to "load the dice against" Bachman. King concludes that he has yet to find an answer to the "talent versus luck" question, as he felt that he was outed as Bachman too early to know.

[alxbrun]

Yes, I think that after a huge success (such as Harry Potter), artists are under tremendous pressure to release something greater or at least equivalent. The same is true for startups btw.

Anyway, if you want to believe what marketers want you to believe, that's fine with me, I won't downvote you for that.