A Working Sketchbook

This type of sketchbook is larger than my usual traveling sketchbooks,  it is a place where I can think in paint.   Never intended for sale, purely as a way of working through a potential painting.  By making these messy, and sometimes unruly studies, I find out what I am noticing and what interests me, I can also Identify areas that I find complicated and make quick visual notes about the effects of light, which can be fleeting, especially when painting en pleinair.