Robert F. Marx se spécialise dans la plongée en 1953 et en a pratiqué plus de 5 000[2]. Il est l'auteur de plus de 800 rapports ou articles et de 59 livres sur l'histoire et l'archéologie des naufrages ainsi que sur l'exploration des épaves[3].
Il a été membre fondateur du Conseil sur l'archéologie subaquatique et de la Société de recherche sur la mer. En 1972, il a participé à la création du diplôme professionnel américain de docteur en histoire marine[4].
They Found Treasure: [interviews], Robert Forrest Burgess (New York: Dodd, Mead, 1977) (ISBN0396074502), OCLC 2797871
In Quest of the Great White Gods: contact between the Old and New World from the dawn of history, Robert F. Marx et Jenifer Marx (New York: Crown, 1992) (ISBN0517582708), (ISBN9780517582701), OCLC 24065049
Spence's Guide to South Carolina: diving, 639 shipwrecks (1520-1813), saltwater sport fishing, recreational shrimping, crabbing, oystering, clamming, saltwater aquarium, 136 campgrounds, 281 boat landings, E. Lee Spence, (Nelson Southern Printing, Sullivan's Island, S. C.: Spence, 1976) OCLC: 2846435
Always Another Adventure, Robert F. Marx (Cleveland, World Pub. Co., 1967) OCLC 1355136
Shipwrecks of the Virgin Islands, 1523-1825, Robert F. Marx; Edward L. Towle et le Caribbean Research Institute (St. Thomas, V. I., Caribbean Research Institute, 1969) OCLC: 209714
Treasure Lost at Sea: Diving to the world's great shipwrecks, Robert F. Marx et Jenifer Marx (Buffalo, N. Y.: Firefly Books, 2003) (ISBN1552978729), (ISBN9781552978726), OCLC 54464113
The Battle of the Spanish Armada 1588, Robert F. Marx (Cleveland, World Pub. Co., 1965) OCLC 920618
Encyclopedia of Western Atlantic Shipwrecks and Sunken Treasure, Victoria Sandz et Robert F. Marx (Jefferson, N. C.: McFarland, 2001) (ISBN0786410183), OCLC 46836931
The World's Richest Shipwrecks, Robert F. Marx et Jenifer Marx (Toronto: Key Porter Books, 2005) (ISBN1552636569), OCLC 60369569
Treasures from the Sea: Exploring the world's great shipwrecks, Robert F. Marx et Jenifer Marx (Toronto: Key Porter Books, 2003) (ISBN1552632075), [ OCLC 52039638]
The treasure fleets of the Spanish Main, Robert F. Marx (Cleveland, World Pub. Co., 1968) OCLC 448399
The Battle of Lepanto, 1571, Robert F. Marx (Cleveland, World Pub. Co., 1966) OCLC 1349558
They Dared the Deep; a history of diving, Robert F. Marx (Cleveland, World Pub. Co., 1967) OCLC 1354152
Following Columbus; the voyage of the Nina II, Robert F. Marx (Cleveland, World Pub. Co., 1964) OCLC: 1413847
Buried Treasure of the United States: how and where to locate hidden wealth, Robert F. Marx (New York: McKay, 1978) (ISBN0679507957), (ISBN9780679507956), [ OCLC: 3203427]
Shipwrecks in Florida Waters: a billion dollar graveyard, Robert F. Marx (Chuluota, Floride: Mickler House, 1985, 1979) (ISBN0913122513), OCLC 13651406
The History of Underwater Exploration, Robert F. Marx (New York: Dover Publications, 1990) (ISBN0486264874), OCLC 21563447
In the Wake of Galleons, Robert F. Marx (Flagstaff, AZ: Best Pub. Co., 2001) (ISBN0941332950), OCLC 49311568
Clay smoking pipes recovered from the sunken city of Port Royal October 1, 1967-March 31, 1968, Robert F. Marx; Jamaica National Trust Commission (Kingston, Jamaica National Trust Commission, 1968) OCLC 121031