In his 1997 book Rocking the Classics, critic and musicologist Edward Macan notes that In the Court of the Crimson King "may be the most influential progressive rock album ever released".
No seu libro de 1997 Rocking the Classics, o crítico e musicólogo Edward Macan destacou que In the Court of the Crimson King "pode ser o álbum de rock progresivo máis influente xamais editado".