Handbook detailing the mechanics of umpiring. - Title: Umpiring Mechanics Handbook, 5th Edition - Publisher: Nippon Professional Baseball (NPB) - Contents: Detailed guide on umpiring mechanics - Features: Explanations with illustrations. Thank you for viewing. * Some pages have markings or red ballpoint pen underlining. Please refrain from purchasing if you are concerned. A new copy costs about 1,500 yen.