Now, epithelial cells which constitute the epithelial tissue come in three different shapes. So we have our cuboidal, columnar and squamous. Now, cuboidal simply means that the shape of our epithelial cell is of a cube. Our columnar simply means we have these rectangular like columns and C squamous simply means our cells are very flat so they look something like this. Now, these cells can basically organize themselves to form our epithelial tissue or the epithelium. And epithelium can be organized in three different ways.