The Book of Genocide appears to be a group art project, which ran from January 2010 to April 2010:

The Book of Genocide

One of the biblical genocides they illustrated was “The Destruction of The Zamzummim Giants”:

The Destruction of The Zamzummim Giants - Seamus McArdle
The Destruction of The Zamzummim Giants – Seamus McArdle

And when thou comest nigh over against the children of Ammon, distress them not, nor meddle with them: for I will not give thee of the land of the children of Ammon any possession; because I have given it unto the children of Lot for a possession. (That also was accounted a land of giants: giants dwelt therein in old time; and the Ammonites call them Zamzummims; A people great, and many, and tall, as the Anakims; but the LORD destroyed them before them; and they succeeded them, and dwelt in their stead:

Deuteronomy 2:19-21

Illustrated by Seamus McArdle

There are some other interesting genocidal illustrations on the site.