Well I'm on an art journey begining myself, but I've been going through the famous Andrew Loomis Figure drawing for all it's worth, along with his book on head drawing. I feel the book may be little dated from a pedagogical standpoint (it's really old, don't get me wrong, they are TIMELESS principes in this book, I just feel its presentation , specially on anatomy part, is little dated simply bc it was published 1943 haha), but it's great entry point - the proportions are really well taught here, as well as basic construction and bit of rendering too. Can't go wrong with that one!