Avi Katz (born 1949 in Philadelphia, Pennsylvania) is an artist who immigrated to Israel in 1970. He studied at University California at Berkley.
From the Second World Simulations website:
"Israeli illustrator Avi Katz was born in Philadelphia PA USA but has lived and worked in Tel Aviv since 1970. He is staff artist of the Jerusalem Report, a news bi-weekly, and has illustrated several dozen childrens books, done animation and graphics for multimedia products and TV, and has exhibited paintings, illustrations and cartoons in Israel, America and Europe. His books have won the Storytellers World Honor Award, the Hans Christian Andersen-IBBY award four times, and the Israeli Zeev Prize six times. He is a member of ASFA, SCBWI, the Israel Association of Illustrators, the Israel Caricaturist Association and the Israel Society for Science Fiction and Fantasy.
Second World is Avi's first professional effort in the Role Playing Game field."
Note: This person should not be confused with Avi Katz (born July 4, 1957), the Romanian-born co-founder and National Paralegal College who immigrated to the United States.