Recommended Art books for beginners or those learning

So my sister and I are drawing again but far from knowing where to begin. All I can do is floating cartoon heads (hair, face- you get the idea) but sometimes without a body. Can never nail the body proportions down. I usually did this in school when leaving little reminders or helpful tips in my notes so it stands out but I want to get into actually learning techniques to help us learn and create our own designs. Mostly because artists on Tumblr make me yearn to be as artistic as they are, same goes for webtoon artists, and videos of users graduation films in animation. You should check out Burn Out and Hors Saison if you have some spare time. Anyway, we are also buying our own drawing displays/monitor just to get used to its available features as I hate wasting paper. I know it's not going to make me an artist overnight but I believe it will keep me occupied and consistent towards my goals in expanding my artistic abilities.
So it's a little whelming on where to start but any advice for these beginners hoping to learn is most welcome!