I am sure that you already aware of this (but your readers may not be), but there are many other books on progress other than Mokyr's and Landes' books.

Here is a list of the books that I think are the best:

frompovertytoprogress.s…

Here is a link to many summaries of books on progress-related topics (from my online library of book summaries):

techratchet.com/industr…

techratchet.com/why-did…