... I use cookie sheets to sort out all the pieces by color and by script and/or signs if any... I never really thought about it but I probably sort out the pieces just willy nilly as in I pick a piece out of the box and lay it in with its corresponding color on my cookie sheets ...after assembling edges then work on any script or signs that might be in puzzle.....then work on probably brightest section of puzzle leaving sky and foliage till last