How is The Very Hungry Caterpillar called in your language? Did the translator have similar freedoms with the name?
When we had children I was absolutely amazed that my partner didn't know Pippi Longstockings. Well turned out that the French translation was tamed/censored significantly, because Pippi was too rebellious (I know the irony in France), and because of that was never successful. They only made a new, more accurate translation in the late 1990s. Hence my partner who is born significantly before didn't know it.
So if we translated it from german directly back to english, the title would be "The Insatiable Caterpillar". Which is close to original "The Very Hungry Caterpillar" but not quite the same. There is a difference between "insatiable" and "very hungry" - namely the "very hungry" can eventually be sated.
It's strange how the translation/conversion from one language to another and then back doesn't necessarily get you the original. It would be like converting $10 to euros and then back to dollars doesn't get you the original $10 ( ignoring fees ).
She takes lyrics translates them from English to something else to something else gc a few times and then back to English. It's quite amusing.
Looking a bit I can't find any of his books in Swedish and neither he nor the caterpillar seem to have a Swedish wiki page.
Anecdotally I'd say well over half the people I know here in Sweden with kids of the relevant age own a copy. I also definitely read it as a kid, had it read to me in kindergarten, and even remember it as an 'animated' TV show (basically panning shots over the illustrations as a narrator read the story).
How old are you? I was born in 1987 so I grew up in the nineties.