> ...(which includes code taken from an MIT/BSD licenced source) then that's copyrighted, and using that code for anything else, commercial or not, would be cop

> ...(which includes code taken from an MIT/BSD licenced source) then that's copyrighted, and using that code for anything else, commercial or not, would be copyright infringement. I don't think this is right. The copyright of the BSD/MIT licensed code remains with the original authors who should be attributed in the textbook (as per the license). Since these authors have permissively licensed their code you're free to use it in your own project (as long as you also include the original attribution). Copying other parts of the text book may be a copyright violation, however.