Hey Alan -
Here’s a few of my favorite books for learning anatomy -
Bridgman’s Complete Guide To Life Drawing - George Bridgman - thouroughly breaks down the figure and anatomy, in a very structual approach i.e. what the primary shapes are and how they relate to each other etc.
Artistic Anatomy - Paul Richter & Robert Beverly Hale - Anatomical reference for artists. This is my go to book when I am trying to figure something out.
Master Class In Figure Drawing - Robert Beverly Hale & Terence Coyle- Life drawing/figure building/anatomy/interpretation/structure of the figure and it’s forms. Uses masterworks as examples.
Anatomy Lessons From The Great Masters - Robert Beverly Hale & Terence Coyle - Breaks down and analyzes master drawings. Analyzes the anatomy of the figure, as well as explanations on how and why said artist interpreted the anatomy in the way they did.
Force; The Key To Capturing Life Through Drawing - Michael D. Mattesi - Not necessarily a book for studying anatomy, but a book that breaks down the dynamic nature of the body really well, capturing force, rythm, gesture etc.
So yeah, George Bridgman and Robert Beverly Hale are great and have a large body of work. Andrew Loomis and Glenn Vilppu are also really good. Some Loomis books can be found for free online, somewhere, not sure where though. I actually found some Hale lectures on VHS at my local university, which were great, and quite rare.
And of course, lots of practice. Life drawing sessions, self portraits, sketching at the busstop, etc.
I’m finding ZBrush a great way to learn and improve my anatomy knowledge as well…
Enjoy your journey…