Johann Sebastian Bach | Johann Wolfgang von Goethe | Tori Amos | Johann Strauss II | St. Johann in Tirol | Daniel Amos | Johann Heinrich Pestalozzi | Johann Albert Fabricius | John Amos | Johann Christian Bach | Johann Georg Wagler | Amos Oz | Johann Pachelbel | Johann Nepomuk Hummel | Johann Gottfried Herder | Johann Nestroy | Amos Alonzo Stagg | Johann Joachim Winckelmann | Johann Gottlieb Fichte | Johann Bernhard Fischer von Erlach | Amos 'n' Andy | Johann Homann | Johann Friedrich Böttger | Amos Starr Cooke | Johann Kuhnau | Johann Heinrich Lambert | Johann Friedrich Blumenbach | Amos Poe | Amos Lee | Amos Kenan |
Haak’s language skills were used in translation and interpretation and his personal correspondence with the natural philosophers and theologians of the day, including Marin Mersenne and Johann Amos Comenius; he facilitated introductions and further collaborations.