Wilhelm August Eduard Johnson (1840:1903) published the first edition of his conversation manual for Attic Greek in 1889. Further editions appeared in 1902, 1912, and 1922 (posthumous). He skillfully supplemented the foundation from Aristophanes's comedies and Plato's dialogues with Koine and Katharevousa to give us a flexible tool to converse in Attic about any topic. This edition is conceived in the natural approach method developed by Hans Ørberg (1920-2010) for Latin. It uses forms or words from the Greek Core Vocabulary to provide explanatory side notes.