The document summarizes the success and lessons learned from the PACSCL/CLIR "Hidden Collections" Processing Project. Key points:
- The project aims to process and make accessible approximately 200 hidden collections across 23 PACSCL repositories through minimal processing and standardized finding aids.
- Lessons learned include determining realistic processing rates, developing standardized procedures and training programs, and establishing quality control measures.
- Benefits of the project include increased access to collections for researchers and building consortial cooperation between repositories.