The museum's cookbook collection predictably stops just short of Marcella Hazan. Italy's most influential modern cookbook author is almost unknown in her own country. Even in her hometown of Cesenatico the local hero is Pantani.

Hazan is widely viewed as the person who converted perceptions of Italian food worldwide from 1950s spaghetti-and-meatballs to modern and sophisticated (and mostly northern) Italian cuisine. Stuff like prosciutto, risotto, etc. She is credited for singlehandedly popularizing balsamic vinegar outside of Italy.

https://en.wikipedia.org/wiki/Marcella_Hazan

This is kind of like France having a museum that doesn't include Julia Child because she didn't cater to the French. Only it's worse because Hazan actually is Italian.