These are terrific resources for bead collectors, and I've never seen them available before. Two "handbooks", about 25 pgs each handbook. Thanks to Deborah Zinn and SBR (Society of Bead Researchers)for making this possible*.

Handbook 1
20 Easy Steps to Identifying Most Beads in Most Collections

https://beadresearch.org/wp-content/uploads/Repeating_Material/CBR/Bead_Identification_Workshop_2nd_Ed.pdf

Handbook 2
https://beadresearch.org/wp-content/uploads/Repeating_Material/CBR/Advanced_Bead_Identification.pdf

*For more details about the Society of Bead Researchers, here's their website: https://beadresearch.org