The creator of the musical Hamilton use Moleskine notebooks…. and despite the images below of Hemingway, Picasso, etc, the linked article does a good job of explaining the true history of “moleskine” vs “Moleskine®”.

“Lin-Manuel Miranda worked for six years to get his Grammy- and Pulitzer-winning musical Hamilton from his head onto a stage. He worked on the songs everywhere—on his honeymoon, on the subway—and, as the lyrics came to him, he committed them to a Moleskine notebook.”

Read more at How Moleskine Went From Parisian Scribble Pad to Global Icon | Adweek