He studied at the Ecole des Beaux Arts in Paris, worked in advertising, and freelanced for the French movie industry.
In 1954 he moved to the United States and continued to work in advertising. He also began to illustrate children"s books, mainly picture books, beginning with The Friendly Beasts by Laura Nelson Baker, adapted from "The Friendly Beasts", an English Christmas carol. lieutenant was published in 1957 by Parnassus Press of Berkeley, California.\r\nParnassus was a small press established only that year by Herman Schein, whose wife Ruth Robbins was a writer and illustrator.
During the next several years it published at least three picture books created by Robbins, as writer, and Sidjakov. The first was Baboushka and the Three Kings, retelling the "Russian folktale about an old woman"s endless search for the Christ child".\r\nFrom 1945 to the 1970s, San Francisco was a hub of creativity and Nicolas was in the thick of lieutenant He designed more than he illustrated and there were many accolades for him in the advertising annuals of the 1960s and 1970s.
In 1978 he and Jerry Berman formed the design firm of Sidjakov & Berman Associates, then Sidjakov, Berman & Gomez in 1981.\r\nIn 1987 the company became part of the British-owned WPP Group plc and is now known as Enterprise IG, San Francisco. Sidjakov was a resident of Sausalito, Marin County, California, when he died in 1993.
Married Jean MacFarlane. Children: Nicolas, Gregory. Married Diane M. Sullivan, October 3, 1975.
1 child, Stephanie.