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Collateral related courses, guides, etc.

ICMA Executive Education: Collateral Management
ICMA Executive Education: Securities Lending & Borrowing - Operational Challenges
ICMA Executive Education: The ICMA Guide to Best Practice in the European Repo Market
ICMA Professional Repo and Collateral Management
ICMA and ISLA Global Master Agreements for Repo and Securities Lending Workshop

Guides, handbooks and other texts

CICF Collateral Fundamentals paper, November 2012
Bank of England SLRC web-page (including guides, codes and legal agreements)