Editing Billiard table (section)

===Markings===
{{cuegloss|Sight|Sights}}, also known as {{cuegloss|Diamond|diamonds}} (for [[Lozenge (shape)|their traditional shape]]), are inlaid at precise, evenly spaced positions along the rails of some tables (not usually on snooker tables) to aid in the aiming of bank or kick shots. There are six along each long rail (with the side pocket interfering with where the seventh one would go, on pocket billiard tables) and three along each short rail, with each of the four corners counting as another in the mathematical systems that the diamonds are used to calculate. These sights divide the playing surface into equal squares. Books, even entire series of books, have been written on geometric and algebraic systems of aiming using the diamonds.{{citation needed|date=October 2022}}

Spots are often used to mark the {{cuegloss|Head spot|head}} and {{cuegloss|Foot|foot spots}} on the cloth. Other markings may be a line drawn across the {{cuegloss|Head string|head string}} (or across the {{cuegloss|Balk line|balk line}} with {{cuegloss|the D|the "D"}}, in British-style pool). Another case is the outline of the {{cuegloss|Triangle|triangle rack}} behind the foot spot where the balls are {{cuegloss|Rack|racked}} in [[straight pool]], since the outline of this area is strategically important throughout the game. In [[artistic pool]], lines may be drawn between opposite sights putting a grid on the playing surface. Other grid patterns are used in various forms of [[balkline billiards]]. A recent table marking convention, in European [[nine-ball]], is the {{cuegloss|Break box|break box}}.{{citation needed|date=October 2022}}