A complete guide to SCP object classes (based on u/Cooldude971's list) : r/ SCP

SCP Classes (The known and unknown) PART 1

Object Classes SCP Guide Reading

Steam Workshop::[SCP] SCPs Labels Materials

SCP Classes (The known and unknown) PART 1

Object Classes, SCP Database Wiki

Flowchart of object classes, main ones and the primary esoteric ones : r/SCP

Explaining the Containment classes and secondary class of the SCP Foundation, Object classes

Anomaly Classification System (ACS) Guide - SCP Foundation

Object classification symbols based on practicality instead of aesthetics; easily distinguished even when damaged and undecipherable by the uninformed. : r/SCP

A complete guide to SCP object classes (based on u/Cooldude971's list) : r/ SCP

I've seen a lot of these here, and wanted to give it a shot. First time at this, so criticisms are helpful : r/SCP

Do we even use the apollyon object class anymore? - SCP Foundation

Anomaly Classification System (ACS) Guide - SCP Foundation

Object Classes, SCP Database Wiki

The more, the merrier (maybe)! Object class guide v1.1 : r/SCP