60031
In the words of renowned typographer Jan Tschichold ( 1902 – 1974 ) , book design , " though largely forgotten today , [ relies upon ] methods and rules upon which it is impossible to improve , [ and which ] have been developed over centuries .
 Jan Tschichold
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Jan Tschichold