From the introduction:
Welcome! We, the design team for The Council's Encyclopedia of Lifeforms Mundane and Magical are excited to have you join us in creating a slew of new creatures for RPG players everywhere (and converting some old favorites).
"Version 004" is published in two volumes, A - G and H - Z. It includes the entire contents of The Council's Encyclopedia of Lifeforms Mundane and Magical Version 003 and greatly expands them with addition content.