About me

Adam Kostrzewski, writing under the literary pseudonym Adam Koss, is an author of short stories, novels, and children’s books.

He lives and works in Łódź, Poland. His writing blends adventure, imagination, and philosophical reflection — often exploring themes of empathy, nature, and the search for harmony.

Adam is also a traveler, athlete, and deep-sea diver. He holds the highest level of technical diving certification and finds inspiration in the mysterious world beneath the waves.

His debut novel Through the Depths to the Stars, followed by titles like The Inquisition of the Symmetry of Existence and Galactic Crusade, reflect his fascination with the unknown and the unseen.

His latest work, Capybaras – Guardians of the Jungle, was inspired by his niece’s love for capybaras and his passion for nature. It is more than a story — it is a gentle call to protect what matters most.