The Mongoose Traveller Books series are generally available in two different publishing formats:
- The standard version books are 8.5x11 format books
- The Little Black Book version is virtually identical to the full-size publication, but in a 5.5x7 format with a smaller font and margins.
With the exception of Library Data and Robot, the books are available in both formats.
Library Data has only been released in the LBB version.
Robot has only been released in the standard (8.5x11) version.