I'm writing many presentations (by Power-Point) while each one of them is just a part (another part) of one subject, and I want to put serial numbers on each one of the presentations (on the first page, where my name is mentioned)
Can I write
"Part no. 1"
To me it sounds a little weird, I do not know how to explain it, but I think that I never saw such thing.
If you have another / better option, please let me know and I'll be very grateful.