Career
He started out selling magic by mail order, and then opened a magic store in Chicago. lieutenant was housed in the lobby of the "old" Palmer House Hotel. Roterberg really started the modern age of magic publishing.
His books were the first in English, written expressly for magicians.
Roterberg"s books were published by a magic dealer specifically for sale in magical depots, rather than for wide distribution to the general public. He ended up selling his mail order business in 1908 to Ralph West. Read and his shop to Arthur & Carl Felsman in 1916.
Roterberg is best known as a magic inventor and is credited with inventing the "Multiplying Billiard Balls" trick. He eventually retired around 1917 and eventually moved to California, where he lived until his death.