Books like Basic Montessori
David Gettman
Basic Montessori is 232 pages, about 4 hours 15 minutes at 250 words a minute.
7 books to read next
How long each takes
Metodo Della Pedagogia Scientifica 6.9 h 
The Montessori Toddler 4.6 h 
Infants, Toddlers, and Caregivers 5.1 h 
The Montessori Method 5.4 h 
Teaching Montessori in the Home 3.2 h 
The Creative Curriculum for Preschool 9.9 h 
Smart Baby, Clever Child 5.1 h Bar height shows length. Estimated at 250 words a minute.