Baedeker Blitz for the German Foreign Office, is reported to have said on 24 April 1942, "We shall go out and bomb every building in Britain marked with three stars in the Baedeker Guide", a reference to the popular travel guides of that name. Goebbels was furious; keen to brand British attacks as "terror bombing", he was equally keen to designate German efforts as "retaliatory measures". Stumm's off-the-cuff remark "effectively admitted the Germans were targetting cultural and historic targets, just what the German leadership did not want to do, and Goebbels took steps to make sure it did not happen again". The
Karl Baedeker on the title pages in both languages, further increased its sales, as his brother Adolph, who had opened a bookshop of his own in Rotterdam that year, sold it in Holland and also managed its sales in England. However, very few copies of the first edition have survived, which has made it one of the rarest and most sought-after Baedeker publications of all time. The "Conversationsbuch für Reisende" ("The Traveller's Manual of Conversation"), in four languages (English, German, French and Italian) which appeared later was based on this manual and for a long time, the stereotype editions remained unrivalled in