In Poland magazines and other periodicals produced by printing methods and marked with ISSN symbol (with the exception of publications of which not less than 67% of the area is for the free or paid commercial announcement, advertisement or advertising) are taxed at a preferential VAT rate of 8%.
An International Standard Serial Number (ISSN) is a unique eight-digit number used to identify a print or electronic periodical publication.
All magazines directed to sell in retail outlets must be marked with the EAN code.
An EAN-13 barcode (originally European Article Number, but now renamed International Article Number) is a 13 digit barcoding standard. The EAN-13 barcodes are used worldwide for marking products often sold at retail point of sale.