other jokes did not land because I did not know the movie star or celebrity referenced.

The main thing I learned while reading through Phyllis Diller's jokes is that comedy has changed a lot since she started her career in the mid-1950s. Her comedy is focused on short one-liners that get laughs in quick succession, while today's comedy is more story-driven. Although a lot of her jokes are very time-bound due to their content, it was interesting to get a glimpse of what was happening at the time a joke was written. Each joke card has a date on it, and the cards span the 1960s to the 1990s. The topic of the jokes told a lot about what people were worried about or focused on at the time the joke was written, whether it was the inflation or student protests of the 1970s, a celebrity's many marriages, or gossip about the president at the time. While, like any comedian, some of her jokes fall flat, I appreciated Diller's hard work in meticulously recording, testing, and filing each joke in the gag file, along with her ability to make a joke about almost any topic.