Lesson How to remove all of your volumes should be How to use data volumes.
Section 7 could use a lesson on removing all of your volumes but does not have one.

How to expose your database and webserver ports is the ending summary.

The course starts off really strong but has some troubles near the end. I think it would be good to give it one more QC pass.

Chapter 5 : How to adjust the working directory contains the lesson for Using files in a Docker container.
The last three units don't seem to be available and the GitHub hasn't been updated in a long time. (7 months to a year ago.)
Is this a case where the MEAP will be canceled for an exchange or refund.