In the post-credits scene of “Thunderbolts*” 2025, Bob is reading Rick Rubin’s book

At the very end of the film in the post-credits scene, Bob is reading The Creative Act: A Way of Being by Rick Rubin.

The book is about taking creative risks and embracing uncertainty in order to venture into unchartered territory. It also discusses how to avoid falling into traps and tropes.

As well as being a nod to Bob’s character arc, it’s possibly a general comment on Marvel’s fresh approach in this latest offering.