Leif Jones is credited in the Classic World of Darkness as the author of Conversational Japanese Volume 2: Words, Customs and Concepts. (There is a picture on page 120 of the KOTE: Kindred of the East Companion Image:Bullet-nip.png depicting a gweilo (foreigner to the East) reading it.) Leif's works are credited in-character to Kostbaar in Trinity. Leif's official contributions for White Wolf include the following: