Mine is by color for the most part in shelving. Some I have that is by maker, like Laurel Burch and those right now are in big totes. I have a seperate for Hoffman, one of my favorites and that is in a shelf. I also have Oriental fabrics and Batiks in their own spots on shelving. All the rest are lumped together by colors. I do have a big tote of quilt backs and one of kids fabrics. So all in all , it is by color and some by certain kinds.