Preface How to Read a Book was originally published in the early months of 1940.
Please distinguish Mortimer J. Adler's later Revised and Updated Edition co-authored with Charles Van Doren, How to Read a Book: The Classic Best-Selling Guide to Reading Books and Accessing Information (1972), from his original work, How to Read a Book: The Art of Getting a Liberal Education (1940). See Wikipedia on How to Read a Book.
References to this work on external resources.
Wikipedia in English
Investigates the art of reading by examining each aspect of reading, problems encountered, and tells how to combat them.