Heraldry is the profession, study, or art of creating, granting, and blazoning arms and ruling on questions of rank or protocol, as exercised by an officer of arms. Heraldry comes from Anglo-Norman herald, from the Germanic compound harja-waldaz, "army commander". The word, in its most general sense, encompasses all matters relating to the duties and responsibilities of officers of arms. To most, though, heraldry is the practice of designing, displaying, describing, and recording coats of arms and heraldic badges.
Historically, it has been variously described as "the shorthand of history" and "the floral border in the garden of history". The origins of heraldry lie in the need to distinguish participants in combat when their faces were hidden by iron and steel helmets. Eventually a formal system of rules developed into ever more complex forms of heraldry.
Though the practice of heraldry is nearly 900 years old, it is still very much in use. Many cities and towns in Europe and around the world still make use of arms. Personal heraldry, both legally protected and lawfully assumed, has continued to be used around the world. Heraldic societies exist to promote education and understanding about the subject.
Link to American Heraldry Society: http://www.americanheraldry.org/pages/index.php?n=roll.a
The Four Visitations of Berkshire 1532-1623 https://archive.org/stream/fourvisitationso5657ryla#page/n9/mode/2up