H. M. Deitel books in order
10 books in the catalogue, about 208 hours of reading in all; the shortest takes 14 hours and the longest 28 hours.
10 standalone books in the catalogue.
Standalone books
An Introduction to Operating Systems 14.3 h 
C How to Program (2 editions) 18.4 h 
C++ 20.1 h 
Java How to Program (2 editions) 28.2 h 
Internet & World Wide Web (2 editions) 23.8 h 
Visual Basic 6 How to Program 18.6 h 
E-business & E-commerce 23.0 h 
Java How to Program--late Objects Version 22.6 h 
Java How to Program--early Objects 22.9 h 
Intro to Python for Computer Science and Data Science 16.1 h