Uppsala University logo —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=21313307

Selenium — Black, glassy amorphous (with thin layer of grey selenium) and red amorphous selenium
Photo Credit: By W. Oelen - File:Selenium-red.jpg, File:Selenium black.jpg, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=15369617

Cerium — Ultrapure cerium under argon
Photo Credit: By Jurii - http://images-of-elements.com/, CC BY 1.0, https://commons.wikimedia.org/w/index.php?curid=9083959

Jöns Jacob Berzelius — cropped from daguerreotype of Berzelius
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=17846991

Periodic Table of the Elements —
Photo Credit:

Sir Humphry Davy, Bt —
Photo Credit: By Thomas Phillips (died 1845) - Public Domain, https://commons.wikimedia.org/w/index.php?curid=6364758

Francis Hauksbee the Elder —
Photo Credit: https://www.awesomestories.com/asset/view/Francis-Hauksbee-Inventor

Winnie-the-Pooh — This is the front cover art for the book Winnie-the-Pooh (book) written by A. A. Milne and illustrated by E. H. Shepard.
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=20273981

Christopher Robin Milne — Son of author A. A. Milne and the basis of the character Christopher Robin in his father's Winnie-the-Pooh stories. Photograph by Marcus Adams, 14 March 1928.
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=37874029

A. A. Milne —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=58472213

The Ugly Duckling cover —
Photo Credit: https://blindhypnosis.com/the-ugly-duckling-pdf-hans-christian-andersen.html