There's some partnership, naturally, involving a book’s inherent popularity and endurance (we'd call this its “basic” standing) as well as recognizability of its cover, particularly its very first cover, if it was performed right, and there can even be a marriage involving the caliber of design alone and its iconic-ness, https://explainervideoagencyuk.business.blog/2025/01/05/tips-to-finalise-the-best-self-publishing-agency/