Beginner here - diagramming tool

Projects General Guidance
1

Hi all,
I'm a beginner and am looking for a good tool to diagram my projects for later reference. Any recommendations?

2

Pencil and paper.

3

(deleted)

4

PeterRoehrich:
I'm a beginner and am looking for a good tool to diagram my projects for later reference. Any recommendations?

In an attempt to be a tiny bit more constructive, what do you mean?

...R