Apologies if this is the wrong place.
What is the best way to learn how to identify what we observe? My primary interest is microscopy (diatoms, microbugs, “nasties” as my lovely wife calls them!). I have some books that I use, the main ones being Patterson’s Free Living Freshwater Protozoa and IG2 (which I only just acquired), and obviously there are endless online resources.
My question really is: Is there a procedure, or a curriculum of sorts, to learning identification? Or is it just practise, practise, practise?