As well as all the glossary terms, and this book has all the footnotes that many e-pub books cannot accept. If a fan was to write their own short Sequetus story, this compendium would be a must. It has every reference in the Sequetus Series from which to branch out into new stories. This was why the glossary was written in the first place, so the author could write new works, while referring back to his central core of data.