What is the General Instruction of the Roman Missal?

It is the handbook for how to celebrate the Mass. While it's not the only resource, most questions about the Mass can be answered with the help of the General Instruction of the Roman Missal.

It covers such topics like the structure of the Mass, its elements and parts; postures, processions and gestures; silence and singing; liturgical furnishings; the role of the deacon, liturgical ministers, and laity, and much more.

The General Instruction of the Roman Missal provides instruction for how to celebrate...