Kari T. Leppänen

Aurinkoalus : Sarjis-lehden sarjakuvat vuosilta 1972-74 (1997) 6 copies

Amok [3] (1992) 5 copies

Kloonien sota (1997) 4 copies

Demonia (1995) 4 copies

Achilles Wiggen - Den kompletta samlingen 1 (2023) 4 copies

Achilles Wiggen: Den Kompletta Samlingen 3 (2025) 4 copies

Achilles Wiggen. Den kompletta samlingen 2 (2024) 3 copies

Amok (1996) 2 copies

The planet of demons : Raiden the space warrior (2010) 2 copies

Amok (1992) — Editor — 2 copies

Achilles Wiggen. Den kompletta samlingen 4 (2026) 1 copy

Damnation Alley (1969) — Cover artist, some editions — 1,386 copies, 36 reviews

The Technicolor Time Machine (1967) — Cover artist, some editions — 657 copies, 14 reviews

The Embedding (1973) — Cover artist, some editions — 502 copies, 10 reviews

Tähtipuu : 33 kotimaista tieteisnovellia (1990) — Contributor — 27 copies