Grid charts or graph patterns are very useful for crochet and knitting. Because they are a simple and effective way of representing a more complicated pattern in a separate chart.
You can utilise them with colours, like corner to corner (C2C) or Intarcia. Either with symbols like Filet or Cables.
Here you can find free creative grid patterns for your crochet and knitting projects. Furthermore, if you want to create your chart, you can use a special graph paper designed by Punto Art Design.