Briqunullus, this is truly amazing! Thank you for making these books available for everyone. I learned something new from a Basic book. On page 44 of "MSX Leerboek Basic deel 1" it shows the CTRL-[key] shortcuts for cursor movements and more. I did not know this. Very cool.
Have you notified Arnaud (tfh) as well? It could be good to have all MSX related digital assets in one place, as a second alternative source, next to archive.org.
I'm also interested in scanning other books. If you want to donate, please get in touch. Scanning involves cutting all pages, so I can't return them in one piece.