Reiss & Sohn OHG is holding auctions from April 21-24, 2026, including a collection of ornithological books with a focus on parrots, and in April 2026, the library of the Rittergutes Ermlitz near Leipzig will be auctioned, featuring autographs of composers, scholars, and scientists, including Richard Wagner. Also in April 2026, there will be an auction of a collection of geology and paleontology, and a collection of fencing books by Rainer Köbelin.