Valerian, hors série #[nn]

This book, labelled "Atlas cosmique de Valérian et Laureline", is a fictional reference book (a galactic encyclopedia) that describes all the different creatures and peoples that appear in series "Valérian et Laureline".

The first edition was published in 1991, a supplement booklet ("Supplément à l'Atlas de Valérian et Laureline") to the first edition and an extended second edition ("édition augmentée") was published in 2000, a third edition was published in 2016.