>Andrew Loomis - Fun with a Pencil
This book is aimed at beginners but it's actually quite hard to draw the 3D forms as a complete beginner. If you actually do what he tells you and had fun constructing your own little cartoons guys, you would learn pretty quickly however.
He covers the divided ball and plane method for heads and how to construct figures but only briefly, so you are left with more questions than answers. These would take hundreds of hours of practice to get good at them. So you'll need to reference his other books for better explanations.
The writing is a bit dated and his cartoon style isn't for everybody. In the last half of the book he briefly covers perspective. Other books cover this better so I would recommend that you just skip that part.
Overall I'd only recommend the first part as a brief introduction to the concept of constructive drawing.