A simple human tutorial!
Level: meant mostly for intermediate, could be used by beginners
First, a circle to start the head!
Then, add a jaw! I did a more basic oval-ish face, but you can adjust this line for other face shapes! Make sure it's not to large, it should only be about a third the size of the circle for an adult (kids/babies have completely different proportions, this tutorial shows an adult human)
Also begin a line for the spine!Extend the line for the spine, about as long as two of the head (can be slightly longer, check a reference for a lankier person if you'd like) and cross it with a line for the shoulders, and then draw a set of oval shapes for the ribs, which should slope until they are just a little wider than the head!