What is dreyer?

As an AI language model, I'm not sure which specific person named Dreyer you have in mind, however, here are some famous people with the last name Dreyer and some general information about them:

• Carl Theodor Dreyer (1889 - 1968): was a Danish film director, he is considered one of the most important filmmakers in the history of cinema. He directed several films, including The Passion of Joan of Arc.

• Kirsten Dreyer Richardson: is a scientist who has made significant contributions to the field of botany. She is a professor of Biology and Microbiology at South Dakota State University.

• Alex Dreyer (1903 - 1983): was an American screenwriter, he wrote several movies during the 1930s and 1940s, including the film To Be or Not to Be starring Jack Benny and Carole Lombard.

• Gerhard von Kamptz-Dreyer (1910 - 1968): was a German fighter pilot during World War II, he was credited with 36 aerial victories and was awarded the Knight's Cross of the Iron Cross.