Nikolai Ivanovich Sladkov (Николай Иванович Сладко́в) was a popular Russian children’s writer and a prolific author of books on nature.
| June 20, 2023 | Edited by Сергей Малышев | Added new photo |
| June 20, 2023 | Edited by Сергей Малышев | Edited without comment. |
| June 20, 2023 | Edited by Сергей Малышев | Added new photo |
| August 23, 2008 | Edited by RenameBot | fix author name |
| April 1, 2008 | Created by an anonymous user | initial import |