In 1968, less than a year before the iconic NASA moon landing, a charming children’s book titled Upside Down Day (public library) made its debut. What made it special weren’t just the vibrant illustrations by artist Kelly Oechsli, but that it was written by Julian Scheer — the head of NASA’s Public Affairs Office, responsible for enchanting Americans with the space program. There is something immeasurably wonderful about knowing that the person in charge of tickling the public imagination into embracing the pursuit of space exploration — a pursuit subject to tragic neglect today — was himself an imaginative storyteller who knew how to inhabit that delicate intersection of whimsy and irreverence.

Given Scheer’s background, it is quite likely that the story of a day where nothing works as expected was inspired by and teases children into considering the physics of space, which pays no heed to earthly expectations — from the way gravity warps the notions of up and down to the soundlessness of space, which makes the mooing of cows and the ring of a bell inaudible amid the cosmic ether.

Though the book, sadly, rests in the cemetery of out-of-print vintage gems, I was able to hunt down a copy — here is a peek inside for our shared delight:

Should you be so fortunate to track down a surviving copy, Upside Down Day is a treat well worth the hunt. Complement it with Weight and Weightlessness, another spacetastic illustrated gem from the same era, and the story of how Scheer and his team marketed the moon.