This fun book is a perfect way for young children to learn about letters. Children are encouraged to draw over the dotted lines to finish the letters in each brightly-illustrated scene. Each page is wipe-clean so that children can write on them with the special pen over and over again. Warning: Not suitable for children under 36 months because of small parts. Choking Hazard. Ink from pen may not be washable.This fun book is a perfect way for young children to learn about letters. Children are encouraged to draw over the dotted lines to finish the letters in each brightly-illustrated scene. Each page is wipe-clean so that children can write on them with the special pen over and over again. Warning: Not suitable for children under 36 months because of small parts. Choking Hazard. Ink from pen may not be washable.