Books like IES Lighting Handbook
Illuminating Engineering Society
IES Lighting Handbook is 357 pages, about 6 hours 33 minutes at 250 words a minute.
8 books to read next
How long each takes
The IESNA Lighting Handbook 18.3 h 
Understanding Physics 9.5 h 
Interior Lighting for Designers 5.3 h 
Natural Philosophy 4.0 h 
Ecclesiastical History 7.9 h 
Exploring Christian Heritage 8.6 h 
The Crisis of Church & State, 1050-1300 3.9 h 
Martin Luther 5.2 h Bar height shows length. Estimated at 250 words a minute.