German edition of conversation books: "CB":
Ludwig van Beethovens Konverstionshefte. Edited by Karl-Heinz Kohler, Grita Herre, and Dagmar Beck. Leipzig: 1968-1993.11 vols. to date.
Very carefully annotated and hence a good source of information on Beethoven's last decade. Vols. 4 and 5 lack indices. Beware of Anton Schindler's forged entries!
English edition. Unfortunately, there is not yet an English translation of the complete conversion books. However, selections appear in several English-language compilations of biographical sources (see below)
For other editions of the Conversation Books (including excerpts translated into English), search the Beethoven Gateway in the Category index (search term: conversation books). For discussions of the Conversation Books, enter the search term in the Major Subject or Subject indexes.