An interesting "experiment" of publishing same book in 3 different "formats": ebook + audio => video
Both "video" and "audio" are interesting, while really lacking good usability
While audio works well for "prose", a technology book does need "illustrations" and "code", so that is almost non-strarter
The video is a reasonable "text to speech" solution, but it feels "constrained" by not being able to see more than one snipped at a time.
A "notebook" or even plain e-book augmented with with auto text-to-speech may be much more usable solution.
One more side note: the "professional reader" of book's text does not work very well here.
A video class / lecture has an engaged author explaining concepts, and is usually effective.
A "human reader" is two steps detached from the original context, less effective for learning.
Terraform in Action e-book @ O'Reilly Learning
Terraform in Action audiobook
Terraform in Action @ Manning