I just received this and am rather disappointed. The lines are so tiny indistinct and spaces so tiny that it will not really function as a coloring book. I will probably buy fine-tipped colored pens for this, because I don't think anything else will work (and those may bleed... still not sure how to use this). I also got Sibbett's Celtic Design Coloring Book, which is much bolder and well-defined. It was what I had in mind when I ordered this one. I recommend that over this one.