Here's a precursor to Why Cats Paint.  From Le Charivari, 1887.

From Lustige Blätter, 1914.

"Things are moving, aren't they."  From Wid's Daily, 1920.

From The Film Daily, 1945.

There's a fine line between the window at the white cat and the white cat at the window.  From The Window at the White Cat by Mary Roberts Rinehart, 1911.  Photo courtesy of Sonicsonia.

From La Colotte, 1908.

Here's a precursor to the internet -- "Pictures of cats."  From The Magazine of Art, 1884.

Shoes as musical notes?  We thought of this illustration from Colorado College's 1905 yearbook when we encountered a drawing of shoes on a piano at Rubel Castle in Glendora, California.

"We all felt sad."  From a rare book with a surprising price tag: Jeremiah the Cat by William Maurice Culp, 1939.

From Barnard's 1905 yearbook.

We're delighted by this review of our How to Be Your Own Cat:

"Superb! I have been initiated into the feline mysteries. I hear my name called and let it wash over me, pause, and recede like waves crashing against the cliffs.  Unmovable.  10/10 would buy again." —Will at Amazon

"I have two eyes that see all things."  From a book currently worth over $800: Jeremiah the Cat by William Maurice Culp, 1939.

"And meanwhile, back on Flying Saucer Hill ..."  From UFO Newsclipping Service, 1983.

From Lenoir's 1920 yearbook.

In the style of Yahoo!answers, "Does it mean anything if a guy remembers that you collaborated on a book?"  Yes—it means a lot!  We were delighted to receive a Jinx mascot pin in the mail, from a friend with whom we wrote a guide to the most remarkable magazine in stage magic's history: The JINX Companion.  Thanks for making our day, Gordon!