For many years Dieter Zimmer's website was the place where you went for accurate, well-documented information on a lot of things on Nabokov. His research on Sergey Nabokov's life and death, especially, was important in the way it, for the first time, presented his story in all its tragic clarity. And his works on Nabokov's Berlin are the primary source for those who want to learn about the city in which Nabokov became the writer we know.
The Nabokov Readings 2020 online conference was opened with a tribute to Dieter Zimmer. This is all we could do, belatedly, to honor his exceptional contribution to Nabokov studies.