I am in love with these markers, and I continue to gather more for my collection. I love how I can color ribbons and metal in addition to paper. I use them the enhance patterned papers, and for stamped images. There are a lot of great tutorials out there for the newly initiated. Word of caution: these are powerful pens. Always place something underneath your paper to protect your work surface. Bleeding does occur, but it's not a bad thing. Sometimes the bleeding enhances what I am working on.