# Tiny Crayon Books > Tiny Crayon Books publishes premium coloring and activity books that teach toddlers and preschoolers (ages 3-6) to count, recognize numbers and build early math skills through coloring. Key facts: - Flagship title: "3D Numbers 1-20: Count, Color & Learn" - 104 single-sided pages, 49 activities, ages 3-6. - Formats: Paperback (8.5 x 11 in, US$14.99) and Hardcover gift edition (8.25 x 11 in, US$29.99), sold on Amazon. - Teaching approach: every number from 1 to 20 is drawn as a bold 3D block; numbers 1-10 use ten frames, tracing and countable 3D objects; numbers 11-20 are taught as "10 and some more" with two ten frames and base-ten counting cubes. - Extra activities: number words, matching, number mazes, find-the-number, missing numbers, counting backwards, jumping by 2s, counting by 10s to 100, color by number, connect the dots 1-20, comparing towers, counting 3D shapes. - Pages are single-sided so markers do not bleed through onto the next picture. ## Book - [3D Numbers 1-20](https://tinycrayonbooks.com/book/3d-numbers.html): what is inside, age range, paperback vs hardcover, FAQ and where to buy ## Blog - [Why Coloring Matters More Than It Looks](https://tinycrayonbooks.com/blog/why-coloring-matters.html): how coloring builds grip strength, focus and pre-writing control - [How Kids Actually Learn to Count](https://tinycrayonbooks.com/blog/learning-through-play.html): one-to-one correspondence, ten frames, teen numbers, counting backwards and skip counting - [Screen-Free Activities That Don't Feel Like a Punishment](https://tinycrayonbooks.com/blog/screen-free-activities.html): what makes a screen-free activity hold a young child's attention ## Optional - [Home](https://tinycrayonbooks.com/): overview of the brand and the book - [Sitemap](https://tinycrayonbooks.com/sitemap.xml)