Heraldry 101 Devices and their display is probably one of the most visually attractive parts of the SCA, however the design of individual arms are strictly controlled by the College of Arms. Designing your own device can be a lot of fun and to learn the basics of device construction I would recommend the Heraldic Primer.

A HERALDIC PRIMER

Attending a basic heraldry class at Kingdom University or one held within the shire is also a good start and remember you can always ask the shire herald for help and advice.