Personalized Bookworm in Training Reading Toddler Long Sleeve T-Shirt. Bookworm in training girls or boys book reading Toddler Long Sleeve Tee - White A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.