Tony Gaddis books in order
8 books in the catalogue, about 132 hours of reading in all; the shortest takes 9 hours and the longest 25 hours.
8 standalone books in the catalogue.
Standalone books
Starting Out with C++ 19.4 h 
Starting Out with Programming Logic & Design 10.2 h 
Starting Out with Python 8.8 h 
Starting Out with Java 22.5 h 
Starting Out with C++ from Control Structures to Objects 24.6 h 
Starting Out with Python (4th Edition) 13.6 h 
Starting Out with Programming Logic and Design 15.3 h 
Starting Out with Visual C# 17.6 h