In about the year 1977 I officially earned my aviation-geek wings when I bought the above book at Coles Bookstore. More specifically, I got my multi-engine rating that day.
The Boeing 737 is in the news due to the recent tragic loss of an Ethiopian Airlines Boeing 737 Max 8 - an advanced version of the type. The Model 737 had been flying commercially for just five years when this book was published in 1972 by Arco Publishing Company, Inc.
(Click on pic to enlarge.)