One of my great-grandfathers had a copy of Mein Kampf, we found it in his belongings when he died at the grand old age of 97. I'd assume he wanted to know the enemy, as he was a committed working class socialist. I had a flick through, but at 11 or so I was a bit young to get anything out of it and couldn't hold my interest.A fair point. Kind of weird not to stock one of the most historically important books of the 20th century (as unpleasant as that history may be). Like, every podunk town library around here has a copy (and one of the Anne Frank diary). Different country tho. Perhaps American libraries have different priorities.
When I got older, I decided it just wasn't worth even bothering. Probably better than Dianetics, though. I tried to read that to see what it was about, but it's a pile of unreadable crap.