O's · O. Shmatova · Shmatova Olga
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Techniques Gouache Painting for Beginners vol.1: secrets of professional artist | 978-1-4564-0920-3 (1-4564-0920-4) | 2010 |
| Techniques Gouache Painting for Beginners vol.2: secrets of professional artist | 978-1-4565-0532-5 (1-4565-0532-7) | 2010 |