@Davïd I found this one was 'breathtaking' for a variety of reasons; among them it was 'scholarly'-yet easy to read. The inclusion of visuals made the point more succinct, and it had the 'right amount of copy'/explanation. May we all hope to reach such heights in our responses. Perhaps this question lent itself to this response; but having posted my own response to the same question, I wanted to take mine back and leave yours there. It's a benchmark worth emulating ;>)

@Tau Indeed. ;-)