The challenge for any presidential-library architect only begins with warehousing vast accumulations of documentary material and creating a landmark that will attract tourists and donations.

WSJ: Bricks and Immortality | George W. Bush Presidential Center | By Julie V. Iovine

Through a wide network of experts, mechanisms have been adopted that foster the exchange of information and promote the key work of preservation and access to documentary material.

UNESCO: Irina Bokova attends the 20th commemoration of the Memory of the World Programme in Uruguay | United Nations Educational, Scientific and Cultural Organization

The Programme, set up by UNESCO ten years ago to preserve and promote documentary heritage, much of which is endangered, helps networks of experts to exchange information and raise resources for preservation, digitization and dissemination of documentary material.

UNESCO: Communication and Information

He saw these drawings as documentary and reference material, not as works of art.

WSJ: Ancient Modernism | 'Louis Kahn: The Power of Architecture' | Vitra Design Museum, Germany | By Colin Amery

No other material from the alleged documentary was ever uncovered.

BBC: Three guilty of airline bomb plot

And there's still the question of who knew what, and when, about the BBC's Newsnight investigation, which was shelved last year, despite uncovering much of the material shown in last week's ITV documentary.

BBC: Savile allegations 'will not go away'

In other words, he was a human being, this Beatle and ex-Beatle and musician and racing enthusiast. (You didn't know about the auto racing?) As Martin Scorsese's award-winning documentary on Harrison, "George Harrison: Living in the Material World, " revealed, he wasn't easily pigeonholed -- and he liked nothing more than to take the piss out of all the cliches.

CNN: 'Material World' reveals much about Beatle

He feels that the TV version of the documentary really doesn't leave anything out, but he added some draft night material after getting feedback from fans.

CNN: Filmmaker: Tebow is an authentic good guy