It's summer at the spark-and-anvil carnival!

Read & listen

Every character has a story

Every character embodies one idea their app teaches — together they tell the whole subject, as an illustrated chapter book and a narrated audio drama.

1277 chapter books · 774 audio dramas · 151 ensemble stories · 163 apps · ~1211K words

Who’s reading? Pick an age.

Little Learners · Ages 3–5 · Pre-K & K · 44

Gentle stories for our youngest (Pre-K & Kindergarten) — short, warm, and made to be read aloud together.

A grown-up and a toddler snuggled together, reading a colorful picture book aloud.

Growing Learners · Ages 6–8 · Grades 1–3 · 47

Early-elementary stories (grades 1–3) — a little longer, still warm and read-aloud friendly.

A young reader following along in an illustrated chapter book while listening on headphones.

Older Kids · Ages 9–14 · Grades 4–8 · 1186

The tween core — every character's story, by subject. Tap a subject to open it.

A tween absorbed in an illustrated cast chapter book, a character seeming to step off the page.

Numbers, fractions, geometry, and proof. Tap an app to open its stories.

Teens · Ages 15–18 · Grades 9–12

Older teens learn differently — through realistic, real-world scenarios and decisions, not illustrated storybooks. There are no chapter books here for this age, and that's on purpose.

A teenager reading a printed real-world case booklet and jotting notes in a journal.

Explore the mature 15–18 experiences — personal finance, decision-making, and planning for the road ahead — over on Play.

📖 Printable books · 173

Free per-app PDFs — read offline, print at home, or share with a class. Illustrated chapter books (Standard ages 9–12; Advanced 11–14 where available), multi-volume series for the big-cast apps, activity workbooks, younger-band coloring books, and engine-verified puzzle workbooks. Content free forever under CC BY-NC-SA 4.0.

Loved by learners