In the last year or two of learning to draw, I've accumulated a number of art books. Here are some particularly good ones for beginners.
Kistler, You Can Draw in 30 Days
Very friendly, exercises that don't take hours on end, and a concise list of drawing principles on pp. 2-3.
Dean, Animal Line Drawing
You can crank one of these out in a spare moment and it will look reasonable.
DeWilde, 30-Minute Drawing for Beginners
More short exercises and principles.
Howard, 101 Textures in Colored Pencil
This is more of a reference, but drawing these will get you in the habit of layering colored pencil to produce rich textures.
Bower, 101 Sketching Tips
A long list of clever tricks and observations for sketching from life.
The Sketch Encyclopedia
Some mediocre general advice followed by a HUGE catalog of things to sketch, each with four reasonable stages.
My watch. It's not smart but it has been reliably doing its job for 20 years or so, if not more. No desire at all to go grab one of the 'smart' watches out there ;)
I went hunting for #Aethelflaed yesterday. This is the only part of #Chester Walls that I think may include some of her refortification, near to the Northgate.