The aesthetics of Go are almost as important as the play in some ways.
The harmonisation of the board and pieces, the materials used, etc., can be for some almost as important as the game (i.e. never use a yuki stone set on a cheap wooden board or don't use thin plastic stones on a table kaya board, etc.).
Also, as many a beginner's book points out, there is aesthetic harmony in the contrasts of wood and stones, line and circle, black and white. -- Tim Brent
With a properly matched goban and stone set, it is impossible to lay a straight line of stones across the board without it bending in places. This accords with Japanese aesthetics, where for example in pottery if a cup is too perfect, the artisan will purposely introduce an imperfection.
Naustin-- On the topic of the messy stones I read a book when I was fairly young about Go that said it is even aesthetic for the players to play slightly sloppily. Some friends and I were discussing this recently and one theory was that the board might appear more like a natural arrangement of stones, a pattern on a beach for example (this after one person had already stated they sometimes see go positions in arrangements of a variety of things out in the wood). This seems a reasonable idea from what I know of Japanese culture but I would be interested to hear from someone who knew more about it, if it was or not.
- Wabi Sabi
- Appreciating Famous Games
- Bad Style
- Playing Styles and Player Types
- Professional Players' Go Styles
- Bad Habits
- Good Habits
- Playing the First Move in the Upper Right Corner
- Go Etiquette
- The Art of Resignation
- Scartol/Philosophy of Go
- The aesthetics of Go
 Either spelling, esthetics or aesthetics, is generally acceptable.
Tamsin: For those who want to know, "aesthetics" is the traditional (British English) spelling. You sometimes also come upon the form with "a" and "e" joined together to form a single glyph.