It has been expanded and some changes have been made to reflect current universally accepted standards. The numbers in the non-scoring boarder designate the values of the dark and light wedges to which they are adjacent.
Darts are a set and consist of three which are thrown as a turn.
The most popular grip is pencil style although comfort and control should be the determinant. The dart is thrown primarily using elbow action, not shoulder. Ballance for your particular style is more important than weight. The least amount of moving parts provides the most precision. Consistency, rather than accuracy, should be the prime objective of the novice.