Shadow and Claw is books one and two collected. Sword and Citadel is books three and four. "The Book of the New Sun" has all four books in the main cycle, and I don't believe it has the coda novel.

Does that mean it has been published as 4 physical books, then later as two physical books with the exact same text?

Yes, as happened with a quite a few novel series that are in total shorter than War and Peace. And also as one volume, with a silly-looking cover.

I hope you enjoy the journey.

Hi there. Your post would be better asked in our Simple Questions thread. It helps us keep the main subreddit focused around broader discussion rather topics which only apply to an individual. Thank you!

OK, thanks a lot!