This is a must from time to time. Folds are challenging and they stretch your observation skills to the hilt. It is an easy 'still life' to set up and you can use anything at home. Tonal ranges, nook and cranny shadows, edges, shapes ... its all good. Tip: Use a hard pencil to start with i.e. 2H, H, F and then progress to the softer range. This allows you to develop the tone without depositing too much texture on the paper at the start of the drawing. Keep your pencil sharpened at all times.