Jones Sketchbook

[DK]

Yea man! Read through each page very carefully, copy all of the examples provided and then do some of your own; until you really understand the concept behind each page and can draw them without looking at the book.

Also, careful with those gestures. You should really be focusing on the pose instead of the exterior form of the body.

Here is an EXAMPLE from a Loomis book on how I think gestures should be like.
Remember to lay in the spine line first to capture the movement always. You want to capture the pose and movement instead of drawing the edges of entire body, and with only 30 seconds to a minute, drawing the form of the figure is not much help and even somewhat a waste since you don't have much time do draw them. Study the example well, especially the one at the end of the page; It will help tons in those quick gesture studies. Keep pushin forward man!