Should I get the supplementary resources which I have seen in the Italic Handwriting Series?

We have found that there is no real need for these ‘supplementary materials’ as the workbooks proved ample exercises and worksheets for the student to work through. If you do require further charts and the like, the Italics instruction manual does explain how such charts are arranged and laid out, so you could attempt to make your own. But hundreds of families around the world have used the Italics Handwriting series as it stands and have found it to be very successful without the supplementary materials.