This educational set is specially designed for children aged 3–8, featuring four themed tracing books for kids ages 3-5 : alphabet, numbers, simple math, and drawing. Each book includes 16 pages of guided writing activities tailored for preschoolers and early elementary learners, helping build core skills in a fun and engaging way. The pages feature light grooves that guide kids in tracing letters, numbers, and shapes. This design not only encourages proper handwriting habits but also improves concentration and fine motor coordination. The grooves are not overly deep, so children stay attentive and actively engaged while practicing. What makes this grooved writing books for kids 3-5 “magic” is the reusable disappearing ink. Using our included magic pen, children can write and trace as much as they want—within minutes, the ink fades and disappears completely (usually within 30 minutes, depending on temperature and environment). This allows for unlimited practice without wasting paper, and parents have enough time to review progress before the ink is gone.