Other books
Dr. Xargle's Book of Earthlets (1988)
Dr. Xargle's Book of Earth Hounds (1989)
Dr. Xargle's Book of Earth Tiggers (1990)
Dr. Xargle's Book of Earth Mobiles (1991)
Dr. Xargle's Book of Earth Weather (1992)
Dr. Xargle's Book of Earth Relations (1993)
Dr. Xargle Stories (1999)
Dr Xargle's Book of Earth Families (2021)
Dr. Xargle's Book of Earth Hounds (1989)
Dr. Xargle's Book of Earth Tiggers (1990)
Dr. Xargle's Book of Earth Mobiles (1991)
Dr. Xargle's Book of Earth Weather (1992)
Dr. Xargle's Book of Earth Relations (1993)
Dr. Xargle Stories (1999)
Dr Xargle's Book of Earth Families (2021)