The words used in this book are the most common words that children aged 4 to 6 come across in school years one and two (grades one and two). This book has four levels of difficulty and will help your child to have fun while gradually gaining greater understanding of using and spelling important developmental words. This book will complement books such as: Alphabet Tracing Worksheets ISBN no 978-1789170702 published by the Sketchbook, Sketch Pad, Art Book, Drawing Paper, and Writing Paper Publishing Company Writing Workbook Ages 3-5: New Edition (Collins Easy Learning Preschool) ABC Ages 3-5: New Edition (Collins Easy Learning Preschool) Book Features Perfect bound book means this book will not fall apart High quality 130gms paper 40 pages Matt cover 200gms Suitable for pencils, pens, felt tips pens, and acrylic pens