In 1946 Pozdneev entered the famous Secondary Art School at the Institute of Painting, Sculpture and Architecture named after Ilya Repin where he studied with Vladimir Gorb and Mikhail Bernshtein.

[4] In one year with Pozdneev Institute graduates Engels Kozlov, Yaroslav Krestovsky, Piotr Nazarov, Anatoli Nenartovich, Leonid Fokin, Vsevolod Petrov-Maslakov, Lenina Guley, and other young artists who later became famous Soviet painters and art educators.

Graduation picture had opened a series of Pozdneev's works of late 1950 – early 1960s dedicated of childhood theme.

The very first showed his art works brought him from the Academicheskaya Dacha attracted the attention of original snapping manner of paint and the special vision of color.

[5] All the subsequent bright, brief, and dramatic fate of Nikolai Pozdneev was closely associated with the picturesque surroundings of the Academic Dacha and Tver lands.

In the late 1960s and 1970s artist created the works Before the fishing season,[21] At the kitchen,[22] Red Stones (all 1967), In Art Studio,[23] Tea Time[24] (both 1969), Still Life with Onions,[25] Still Life with Vegetables[26] (1971), Houses[27] (1972), Winter Landscape[28] (1975), Barents Sea, On the hill (weather station)[29] (both 1977), and others.