Marcoll G

@gwenmarc

Amazon KDP Specialist, Barcode and QR Code Designer

Nigeria

English, Spanish

About me

Hi! I’m Gwen Marcoll, your dedicated partner in self-publishing success and digital assets. With a deep understanding of the Amazon KDP ecosystem, I help authors transform their manuscripts into best-selling masterpieces. Beyond publishing, I specialize in creating high-functioning, custom QR codes and UPC/EAN barcodes tailored for your business or product packaging. Message me today, and let’s get started!... Read more

Skills