Wipe Clean Learning Pen Control Letters Workbook is a re-useable workbook is an ideal introduction to pen control. Before learning to write on tehir own, children need lots of practise drawing pre-writing patterns. The colourful images encourage young children to develop the skills needed to master pen control which will hopefully ensure a smooth transition to writing the alphabet and numbers. Using the wipe-clean pen included, children can practise tracing the dotted lines again and again.