The cover art of DOWNBELOW STATION is by David B. Mattingly. Included in the preface to the text are sketches of the structure of the space station above called "Pell." Artificial gravity is present on Pell by virtue of rotation about the core hub. Additionally, the craft streaming from Pell are sub-sized space stations which also have rotating structures for induced gravity. Additionally, the smaller stations possess propulsion systems for travels about the Universe. To examine the use of rotation to provide artificial gravity on a space station, click here.