Reading suggestions from the HPmuseum document set

[pier4r]

So, after a bit of trouble I got the hpmuseum usb set (version 2017? how do I know the version that I have?).

The point is, I did only briefly checked it.

I know that the old forum archives are in PDF (so one sees what was really on the page) but I often find content faster with google until the archives are online.

I see a lot of manual that for the moment are not so appealing to me aside as "backup for history". This because I do not know whether the contents can be interesting or not. A manual is normally interesting when one has the device that the manual describe but there are exceptions.

Therefore, from the hpmuseum document set, what would you recommend to read and why? Independently if one has the device mentioned by the document.
Of course assumed that one is interested in RPN, RPL, programming and math.

For example I guess the 15C advanced functions handbook can be interesting, although I did not read it yet.

PS: if such a topic was discussed already, please link it to me because I did not find any good result.