Football Officials Guidebook Author:Jeffrey Stern, George Demetriou, Jerry Grunska Football Officials Guidebook: NFHS Mechanics for Crews of 4 and 5 Officials updated for 2004-05! This essential guide is a must-have for any high school football official! Referees exclusive PlayPic and MechaniGram illustrations enhanced to allow you to see the action more precisely! The signals chart has also ... more »been improved with updated and more detailed illustrations! New mechanics covered officials' positions on free kicks; forced touching on a free kick; punt positioning in 4-official mechanics; and new procedures for reducing wasted time before free kicks.« less