Bowling ball random when impacting a full rack of pins on the first delivery of a frame, and sometimes when hitting downed "dead wood" pins on subsequent deliveries—the candlepin bowling sport is the only major one that allows fallen pins, provided no part of any fallen pin extends more than 24 inches (61 cm) forward of the head-pin spot, to remain on the lane's pindeck to be used in knocking down more pins with the next ball delivery in the same round—up to three balls are delivered, much as in duckpins, in each round of candlepins for one bowler. Bowling ball A
Ten-pin bowling ten-pin magazines and news services are the international and world-renowned "Bowling Digital News", the international "Bowlers Journal Online" and the "International Bowling Industry". Specific American magazines of note are the "Bowling This Month" magazine and the "Bowling Digest". Additionally, other than books written by bowling instructors on the coaching and training of the sport, books on the humorous and historical side of ten-pin bowling have become extremely popular. Some of these include "A Funnier Approach", "The Funniest Approach", "Bowled Over", "The New Bowling Trivia Book", "Two For Stew" and "The Tour Would Be Great". Ten-pin bowling has been referenced in