The ISBN (International Standard Book Number) is a unique and permanent number that identifies any book around the world (visit the official website for more information).
In practice, the ISBN number is a logistics identifier necessary for online bookstores to manage their catalogues.
Assigning an ISBN does not establish any kind of publishing relationship. Using StreetLib Publish doesn't grant any rights to StreetLib, for there is no formal publishing relationship between StreetLib and the author.
If you already have an ISBN number, you can use that. If not, we will automatically provide one during the publishing process for free. Simply leave the field intended for an ISBN blank.
Please remember that the paper and digital versions of the same title require a different ISBN.