There are quite a few publicly available slide decks that Anil John has circulated from his program working on developing verifiable credentials. It will continue to get updated as more material from this program are released.
DHS SVIP Digital Wallets Verifiers Topic Call (solicitation)
DHS ST SVIP Blockchain to Decentralized Identity: Crossing the Valley of Death between Great Ideas and Real Implementations
DHS SVIP Scaling W3C VC DID Interoperability 2022 07 12 From Principles to Interoperable Implementations
DHS W3C VC-DID Implemenation Profile 2022 09 29 Credential Data Model Representation Syntax & Proof Format