This is still missing the "what" for me. What do you write down about the work?
Is it a plan for what you're about to work on? Is it a breakdown? Is it facts you learn as you work through something? Is it a minute by minute journal of what you've done? Is it just interesting details? Is it to-dos? Is it opinions you're trying to clarify?
Diagrams I get, my desk is covered in scribbled diagrams to help me visualise something or communicate it to a colleague.
Is it a plan for what you're about to work on? Is it a breakdown? Is it facts you learn as you work through something? Is it a minute by minute journal of what you've done? Is it just interesting details? Is it to-dos? Is it opinions you're trying to clarify?
Diagrams I get, my desk is covered in scribbled diagrams to help me visualise something or communicate it to a colleague.