Thanks a million, Jeff. Your numbers jibe with what I've heard about textbook publishers. Interestingly, they also resemble what you might get for a first novel: e.g., $5,000 to $10,000 from a "name" publisher and $2,000 to $3,000 or less (maybe $1,000 or nothing) from very small literary press.

What's sad is that since the 1980s or 1990s, book advances have stagnated except for the biggest-name authors for whom they have in some cases soared. So your figures might not be much different today although the cost of living has risen.

If you'd like to pick up an easy 50 claps from me, would you leave your comment also on my recent piece about university presses if you haven't commented on it already? Your info could help readers of that story, too, and you could just copy and paste what you said here into the Comments there.

https://medium.com/lit-life/should-you-publish-your-book-with-a-university-press-40209f8792f1