# Capstone

> Capstone is a Minnesota educational publisher selling children’s books, interactive eBooks, literacy resources, and PebbleGo subscriptions to schools, libraries, districts, and families. Its specialty is making curriculum-connected content accessible to elementary learners, including emerging readers and English learners.

- **Founded:** 1991
- **Headquarters:** North Mankato, United States
- **Founders:** Robert J. Coughlan (Founding owner of the modern publishing business; member of the 1990 acquisition team; sole owner since 2019)
- **Products:** Capstone print publishing, PebbleGo, PebbleGo Next, Capstone Interactive, PebbleGo Create
- **Notable:** A Different Pond, illustrated by Thi Bui and written by Bao Phi, received a 2018 Caldecott Honor., PebbleGo reached its tenth anniversary in 2019., Capstone acquired Buncee in September 2021.

## Products & services

- **Capstone print publishing** — Children’s fiction, nonfiction, picture books, early readers, chapter books, and literacy resources for schools, libraries, and home reading.
- **PebbleGo** — Subscription research and literacy platform for K-2+ learners, with visual navigation, read-aloud articles, vocabulary support, and activities.
- **PebbleGo Next** — Research content for grades 3-5+, including science, social studies, biographies, states, animals, health, and Indigenous Peoples’ History.
- **Capstone Interactive** — Interactive eBooks with narration and word highlighting; available through subscription bundles and perpetual purchase options.
- **PebbleGo Create** — Student creation tools connected to research and classroom projects; Capstone acquired Buncee in 2021 to extend these capabilities.
- **PebbleGo Premier** — Subscription package combining research content, eBooks, creation tools, and educator resources.
- **Educator Tools** — Curated collections, lesson resources, activities, and favorites for planning and instruction.
- **Ask PebbleGo** — AI inquiry feature using PebbleGo and PebbleGo Next articles, with source references and a fallback when an answer cannot be supported; publicly offered through a pilot.

## Achievements

- A Different Pond, illustrated by Thi Bui and written by Bao Phi, received a 2018 Caldecott Honor.
- PebbleGo reached its tenth anniversary in 2019.
- Capstone acquired Buncee in September 2021.

## Latest updates

- **2026-06** — Minitex announced its statewide e-resource selection, including additional PebbleGo and PebbleGo Next modules for Minnesota.
- **2026-02** — PebbleGo announced 10 new Educator Tools collections, including history, economics, engineering, and the water cycle.
- **2025-09** — Minitex advised schools and libraries to update older PebbleGo links following a summer platform overhaul.
- **2025-08** — Capstone announced PebbleGo Next Animals, PebbleGo Next Spanish, eBook bundles, and PebbleGo Premier.

## Links

- Website: https://www.capstonepub.com/
- LinkedIn: https://www.linkedin.com/company/capstonepub
- Twitter/X: https://twitter.com/CapstonePub
- YouTube: https://www.youtube.com/user/CapstonePublishers
- Bluesky: https://bsky.app/profile/pebblego.bsky.social
- Instagram: https://www.instagram.com/capstonepub/
- Facebook: https://www.facebook.com/CapstonePub/
- TikTok: https://www.tiktok.com/@pebblego_capstone

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Profile page: https://yespress.io/capstone
Published by YesPress — https://yespress.io
Last updated: 2026-10-23