For starters I'm going to review the list of items that are on the ISCA website.  I believe Warren Kuhfeld helped lead this effort up several years ago.  Taken as a whole the topics are a great starter kit for collectors. However, as PDFs they are not easy to find in a Google Search.  So I'll start off by paying homage to what has already been done and pick it up from there.

Some questions I've received from young collectors on Facebook have given me some ideas on this too.  Recently someone asked, "What's the Blue Book".  That one hit me because I realized it's something that has not been updated in probably 10 years but we talk about it like everybody knows how it fits into the hobby.

I know several people have authored handouts for various classes including Collections Merit Badge that you could call a beginners guide to patch collecting.  That would be a bigger project but that thought has also crossed my mind.  However, youth these days are much more into consumable videos they can watch on their smart phone than anything that resembles a printed book.