Catalog: Zagorsky Stamps of Russia and USSR . Set .Vol 1-6 digital book.
- 1. Catalogue of postage stamps. Azerbaijan 1919-1923 (2015)
- 2. Zemstvo postage stamps 1866-1919 (2017)
- 3. Postage stamps of the USSR 1966-1991 (2018)
- 4. Postage stamps Russian Empire, RSFSR, USSR 1857-1965 (2018)
- 5. Postage stamps of the USSR 1966-1991 (2021)
- 6. Zagorsky V.B. - The first postage stamps of Russia. Release history. Catalogue (2007)