Ask an Artist - Keeping a Sketchbook

Recorded during Lockdown, apologies for the sound quality.
Should you keep a sketchbook?  Laura and Peter have very different responses to this, Peter has kept sketchbook throughout his professional career whilst Laura has some but their use is slightly more ad hoc.  The consistent thing for both of them is that it is important to take notes, both written and visual.The sketchbook is peter's go to place for these, but Laura is quite likely to use the back of an envelope, or a sheet of paper.