Colorado Gov. John Hickenlooper shows off his socks--one with Democratic presidential candidate Bernie Sanders and the other with Republican candidate Donald Trump – before entering his former brewpub for a book signing event to mark the release of his autobiography Thursday, May 26, 2016, in Denver. Hickenlooper, who is term-limited, is doing book talk rounds this week, reviving speculation that he is positioning himself to join Hillary Clinton's presidential campaign ticket. (Photo by David Zalubowski/AP Photo)

Very impressive, the RGB Colorspace Atlas is a beautiful picture book by American artist Tauba Auerbach. The book displays the full RGB gradient in 3,632 pages.

Undated David Yarrow handout photo of a gorilla as the self-taught wildlife photographer promotes his book, Encounter. (Photo by David Yarrow/Clearview/PA Wire)

A model takes a picture of photographers outside the Anna Sui show at the Strand Rare Book Room in New York on February 10, 2024. (Photo by Jeenah Moon for The Washington Post)

Shakar Rustami (L) and Zulaikha Amini, organizers of the“'Smart Way” book and painting exhibition stand in front of painting in Kabul, Afghanistan, 21 August 2023. Young female artists in Kabul held a painting exhibition to express the restrictions imposed by the Taliban on women and girls. The exhibition also featured books displayed by students to promote reading culture. Some of the girls called for the Taliban to lift the restrictions against women and girls. Many female students turned to painting and drawing after schools and universities closed. (Photo by Samiullah Popal/EPA/EFE)

Sara White, dressed as Ginny Weasley, a fictional character in J. K. Rowling's Harry Potter series, poses for portrait at the launch of “Harry Potter and the Cursed Child” at Foyles book store on July 30, 2016 in London, England. The script book of the play of the same name, which is on at Palace Theatre, billed as the eighth Harry Potter story, is on sale from midnight tonight. (Photo by Rob Stothard/Getty Images)

Dutch actress, dancer and model Lotte Verbeek and the cast of “The Book Of Vision” recreate the pinnacle scene from the movie during the 77th Venice Film Festival at on September 03, 2020 in Venice, Italy. (Photo by Yara Nardi/Reuters)

Lucie Clayton instructs pupils in the art of correct posture by balancing a glass and book on their heads at her finishing school in Old Cavendish Street, London. (Photo by William Vanderson/Fox Photos/Getty Images). 25th November 1936