Books like Knaurs Lexicon Der Symbole
Hans Biedermann
Knaurs Lexicon Der Symbole is 465 pages, about 8 hours 32 minutes at 250 words a minute.
8 books to read next
How long each takes
A Dictionary of Symbols 19.4 h 
The Book of Symbols 14.9 h 
Diccionario de Símbolos Tradicionales 9.1 h 
Dictionary of Symbols 10.9 h 
Complete Dictionary of Symbols 10.0 h The Continuum Encyclopedia of Symbols 6.4 h 
Dictionary of Symbols and Imagery 9.5 h 
1001 Symbols 7.0 h Bar height shows length. Estimated at 250 words a minute.