[1] Sashko was born and raised in the village of Haivoron, Volodarka Rural District, Bila Tserkva Raion, Kyiv Oblast.

On 20 January 2023 his brother Oleh was killed in action in Donetsk Oblast while defending Ukraine from the Russian aggression.

The Ukrainian Ministry of Education recommended that his works (Adventures of Onysko the Garden Snake, Grandma Declares War, A Cow of Time, The Apple Kingdom, The Dance of Chugaistr, Malyaka the Princess of Draconia, The Tales of Dragon Omelko, and Hippos are Not Bears poetry collection) be included in elementary school reading curricula.

[5] Sashko's works appeal to younger audiences as they contain a great deal of humor, magic, adventures, unexpected plot turns, and lively colorful characters.

He is also known for his rich and complex Ukrainian language, use of idioms, and other linguistic attributes that help young readers develop their vocabulary and writing skills.