Labels and cards with gLabels from beginner to advanced

Labels and cards with gLabels from beginner to advanced: "WorldLabel: 'In the world of label creation software for Linux, gLabels is the long-standing market leader. It offers a convenient graphical interface in which you can design labels with the same tools you are used to finding in image editing software, but it also supports business-friendly advanced features like 'mail merge' and barcode generation.'"