La Gatta was born in Naples, Italy, and came to America when he was a young boy. His art training was at the New York School of Fine and Applied Art. By the early 1920s he had begun to establish a reputation as an illustrator of beautiful women, and from the mid-20s through most of the 1930s his career was at its peak. His earnings allowed him to live on the posh North Shore of Long Island and own a yacht. More about his life and career can be found here, here and here.
Unlike many 1920s vintage illustrators, and perhaps because in some sense he was a fashion artist, he relied heavily on drawing with charcoal or other drawing tools, adding color when required using water-based or thinned oil paint washes. Examples of this classic La Gatta style are shown below. Of course, he also used other styles and media when called for, and I might deal with that in another post.