This book has extra-large pictures with thick lines to promote error free coloring, to increase confidence, to reduce frustration, and to encourage longer periods of drawing. Perfect bound book means this book will not fall apart High quality 130gms paper Extra-large pages This book will assist with pen control and the development of fine motor muscles essential for writing Pictures assist fine motor skill progression 50 original coloring pages Black back pages to reduce bleed through paper Matt cover 200gms Suitable for pencils, pens, felt tips pens, and acrylic pens Thick lines to reduce frustration and increase attention