The edition number is the specific number assigned to a print or artwork within an edition, usually indicated as a fraction.
For example, the first print in an edition of 100 might be marked as 1/100. The edition number can provide insight into the value of the piece; earlier numbers are sometimes considered more valuable, although this is not a universal rule. Knowing the edition number can be crucial for collectors and galleries as it adds another layer of information about the artwork's provenance and exclusivity.