According to the Cornwall (Connecticut) Historical Society, the artist moved to Cornwall in the 1930s. He relocated to New York City, where he worked and taught at the Brearley School, an independent school for girls. He and fellow etcher Martin Lewis opened a school for printmakers in George Miller's 14th Street Studio in Manhattan. Landeck later returned to Cornwall.

His views of New York City and rural Connecticut garnered numerous honors. As several critics have noted, Landeck's scenes owe something to the works of Edward Hopper in their sense of isolation and to Charles Burchfield, in whose work inanimate objects serve to show emotion.

Landeck was born in Wisconsin and trained as an architect at Columbia University.