Books like The First Muslim
Lesley Hazleton, Deepti Gupta
The First Muslim is 336 pages, about 6 hours 10 minutes at 250 words a minute.
12 books to read next
How long each takes
Muhammad 5.3 h 
Muhammad 6.6 h 
The Prophet Muhammad 4.7 h 
Reclaim Your Heart 3.6 h Sirah Nabawiyah 9.4 h Filsafat Hukum Islam 5.8 h 
I Lost My Way: 1.8 h 
Infidel 6.5 h 
The Life of Muhammad 14.9 h 
Love Stories from the Qur’an 2.3 h Fiqih Wanita 8.2 h 
A Concise History of Pakistan 7.2 h Bar height shows length. Estimated at 250 words a minute.