The Ostermans have given demonstrations, workshops and lectures for museums, universities, educational and historical societies since the early 1990s. Here is a partial list:

Fox Talbot Museum, Lacock Abbey, Lacock, England
Metropolitan Museum of Art, New York, NY
Harry Ransom Center, U of Texas, Austin, TX
Victoria and Albert Museum, London
National Gallery of Art, Washington, DC
Princeton University, Princeton, NJ
Centro de Estudos em Fotografia da Golega, Golega, Portugal
F295 Symposium, Pittsburgh Filmmakers, Pittsburgh, PA
Alchemy Studios, Phoenix, AZ
Anderson Ranch, Snow Mass, CO
Dallas Museum of Art, Dallas, TX
Art New England, Bennington, VT
Minnie Weisz Studio, London, UK
Notre Dame University, South Bend, IN
University of Missouri, Kansas City, MO
Tokushima University, Tokushima, Japan
George Eastman House, Rochester, NY
Maison Niepce, St. Loup de Varennes, France
Photographer's Formulary, Condon, Montana
Cornell University, Ithaca, NY
Century Darkroom, Toronto, Canada
National Library of Ireland, Dublin, Ireland
Art Institute of Boston, Boston, MA
Segura Publishing, Mesa, AZ
Mercer Museum, Doylestown, PA
Princeton Arts Council, Princeton, NJ
Eckley Miners Museum, Scranton, PA
Eastfield Village, Nassau, NY
Historic Richmondtown, Staten Island, NY
Fleetwood Museum, N. Plainfield, NJHarvard University, Cambridge, MA
Staatliche Akademie der Bildenden Künste, Stuttgart, Germany
Fachhochschule für Technik und Wirtschaft, Berlin, Germany
Escuela Nacional de Conervación, Restauración y Museografia, Mexico City
Nat'l Museum of American Art, Smithsonian Institution, Washington, DC
New England School of Photography, Boston, MA
Baltimore & Ohio Railroad Museum, Baltimore, MD
Diputacion Provincial de Huesca, Huesca, Spain