"The declassified President’s Daily Briefs (PDBs) from the Nixon and Ford presidential administrations in this collection include about 2,500 documents and 28,000 pages. As part of this release, CIA held a symposium, "The President's Daily Brief: Delivering Intelligence to Nixon and Ford, " at the Richard Nixon Presidential Library in Yorba Linda, CA on 24 August 2016. The PDBs contain the highest level of intelligence on the president’s key national security issues and concerns. These documents were the primary vehicle for summarizing the day-to-day sensitive intelligence and analysis, as well as late-breaking reports, for the White House. As part of this declassification effort, the President’s Intelligence Checklists (or PICLs, pronounced “pickles”) and PDBs delivered to Presidents Kennedy and Johnson – some 2,500 documents and 19,000 pages – were released for the first time on 16 September 2015. The two collections show that the product was tailored – both in content and format – to the requirements of each president. President Richard Nixon, as a once practicing attorney, preferred to review the PDBs on longer legal size paper, and this format was carried into the Ford administration. Both collections were assembled as part of the CIA’s Historical Review Program, which identifies, reviews, and declassifies documents on historically significant events or topics..."
CIA's Freedom of Information