and 1990 under the title "Alfred Hitchcock 3 Etsivää". Translations include all the 43 books from the original series, but in slightly different order than in US, 2 from the Find Your Fate series (#44 The Case of the Weeping Coffin and #45 The Case of the Dancing Dinosaur) and 1 from the Crimebusters series (#46 Hot Wheels). France In France, the original nine books were published during the 1970s by the Bibliothèque verte collection of books for young readers under the title "Les Trois Jeunes Détectives" ("The Three young detectives").. Throughout the 1980s and 1990s, the series continued. As a whole, 37 volumes (including four of the Crimebusters series) has been published. Germany The Three Investigators books have always been very popular in Germany. They are known there as Die drei ??? (Die drei Fragezeichen, meaning "The Three Question Marks"). Jupiter Jones was renamed as "Justus Jonas", a German adaption of his original name, while Peter Crenshaw is named "Peter Shaw". Bob Andrews retained his original name. The chauffeur's name is Morton. In 1964 the Random House publishing company and the Kosmos publishing company started to publish the translated 43 original books. In 1979 the German publisher Europa started a radio drama based on those original 43 books. In 1993 Kosmos started to publish new written books by German authors which were and still are continued as radio dramas in Germany. All in all, this resulted in a canon of over 220 books (6 books per year, 3 during spring and 3 during autumn) and 221 radio dramas published as of January 2023. Because of a litigation between Europa and Kosmos which disallowed the use of the names Europa used, they published a 9 episode radio drama named "DiE Dr3i" between 2005 and 2007. "DiE Dr3i" were mostly identical to "Die drei ???" and they also used the same German voice-actors, but they had to change the names of the characters to the original English names. "DiE Dr3i" were stopped when the litigation ended and "Die drei ???" started again. Taped radio dramas (Hörspiele) of the novels have been especially popular in Germany with most of them having been certified Gold or Platinum by the German Federal Association of Music Industry. In total, the radio dramas have sold more than 45 million copies and the books about 16 million copies in Germany (2013). A study conducted in 2009 by