Pottery Identification Wiki

Crystalline Glaze

Alkaline Glaze

Ash Glaze

Chrome Red

Salt Glaze

Albany Slip

Sometimes, its not the glazes, but the decoration I'm struggling to describe. I found this article filled in some gaps for me: https://discover.goldmarkart.com/10-types-ceramic-decoration/

Also, this page has great descriptions of 7 types of glazes used in studio pottery today; it probably won't be helpful with your art pottery, but probably will with some of your asian looking stuff:

https://discover.goldmarkart.com/buying-pots-glazes-glossary/