Experts have noted similarities between the way Jung integrated texts and illustrations in the Red Book and the work of British poet, painter, and printmaker William Blake (1757�1827). Jung knew Blake�s works well and included two of them�one depicting a scene from Dante�s Inferno, the other Jacob�s Ladder�in his Psychologie und Alchemie (Psychology and Alchemy, 1944). Jung wrote that he found �Blake a tantalizing study, since he compiled a lot of half or undigested knowledge in his fantasies. According to my ideas they are an artistic production rather than an authentic representation of unconscious processes.� Blake illustrated this edition of Night Thoughts (1742�1745 ), a popular poem by Edward Young (1681�1765).