“Wheel books" were once found in the uniform pockets of virtually all junior officers and many senior petty officers. Each small notebook was unique to the Sailor carrying it, but all had in common a collection of data and wisdom that the individual deemed useful in the effective execution of his or her duties. Often used as a substitute for experience among neophytes and as a portable library of reference information for more experienced personnel, those weathered pages contained everything from the time of the next tide, to leadership hints from a respected chief petty officer, to the color coding of the phone-and-distance line used in underway replenishments. In that same tradition, the Naval Institute has created and aptly named the Wheel Book series, portable libraries culled from USNI's vast array of information that has accumulated for more than a century. Articles from the Institute's flagship publication Proceedings are combined with selections from USNI's oral history program and from Naval Institute Press books to create unique guides on a wide array of relevant professional subjects. Just as the “wheel books" of yesterday served the fleet well, the Naval Institute Wheel Books of today provide supplemental information, pragmatic advice, and cogent analysis on topics important to modern naval professionals. The late Vice Admiral A.K. Cebrowski—well known as a brilliant thinker on the subject of naval warfare—once described naval tactics as “the sum of the art and science of the actual application of combat power." Renowned naval tactician Captain Wayne Hughes adds that the study of naval tactics “strives to bring whatever order and understanding is possible out of the chaos of battle." With those words of wisdom serving as “commander's intent," this collection sheds a bright light on this sometimes dark and mysterious but unquestionably

essential realm, illuminating the principles and concepts that serve the warrior at the most critical moments in his or her profession.