# FlatWorld

> FlatWorld (formerly Flat World Knowledge; legal entity Boston Academic Publishing Inc.) is a Boston-based publisher of affordable, high-quality college textbooks, founded in 2007. Every textbook includes auto-graded homework, instructor supplements, and AI study support, and is used at more than 2,000 institutions. Student pricing starts at $24.95.

FlatWorld sells directly to students and institutions and works with instructors who adopt its titles. The catalog, bookstore, and support sites are on flatworldknowledge.com, the company's earlier domain.

## Comparisons

Sourced, dated comparisons of FlatWorld against open educational resources and courseware platforms. Each states a direct answer first, then pricing, homework, support, and accessibility, with citations.

- [Comparisons hub](https://flatworld.com/compare/): Index of every comparison article.
- [OpenStax vs. FlatWorld](https://flatworld.com/compare/openstax-vs-flatworld/): OpenStax textbooks are free; its Assignable homework starts at $15 per student. Full pricing breakdown.
- [OER vs. FlatWorld](https://flatworld.com/compare/oer-vs-flatworld/): Is OER really free? OpenStax, LibreTexts, and Lumen compared with FlatWorld on support, quality, accessibility, and real cost.
- [LibreTexts vs. FlatWorld](https://flatworld.com/compare/libretexts-vs-flatworld/): What remixing open content costs in fees and faculty time.
- [Lumen Learning vs. FlatWorld](https://flatworld.com/compare/lumen-learning-vs-flatworld/): Lumen's OER is free; its $35-per-term courseware is not.
- [Top Hat vs. FlatWorld](https://flatworld.com/compare/top-hat-vs-flatworld/): Top Hat charges $58 a year before the textbook.

## Products and features

- [FlatWorld Homework](https://flatworld.com/flatworld-homework/): Auto-graded homework included with every textbook, free for students, works with any LMS.
- [SmartHelper](https://flatworld.com/smarthelper/): AI study tool that answers only from the assigned textbook, with citations students can check. Included with every textbook.
- [Notes and Highlights](https://flatworld.com/notes-and-highlights/): Highlight, annotate, review, and print or save notes as a PDF, on any device.
- [Podcasts](https://flatworld.com/podcasts/): Two-host podcast episodes for every chapter, drawn only from the book. Included with the Standard package.
- [Instructor Supplements](https://flatworld.com/supplements/): Instructor's manual, solutions manual, PowerPoint slides, test banks, and sample syllabi with every title.
- [Savings Calculator](https://flatworld.com/savings-calculator/): Compare any publisher's price against FlatWorld's across class size and semesters.
- [Catalog](https://catalog.flatworldknowledge.com/): Browse and search every FlatWorld textbook by discipline.

## Company

- [About FlatWorld](https://flatworld.com/about/): Mission, history since 2007, team, and how the company works with instructors.
- [Accessibility](https://flatworld.com/accessibility/): WCAG 2.2 Level AA conformance, VPAT, and accessibility conformance report.
- [Participating Universities](https://flatworld.com/participating-universities/): Colleges and universities where professors teach with a FlatWorld textbook.
- [FlatWorld Scholarship](https://flatworld.com/flatworld-scholarship/): Free textbooks and homework for one professor's class for an academic year.
- [Press](https://flatworld.com/press/): Company announcements, academic news, and platform updates.
- [Authors](https://flatworld.com/author/): The people who write FlatWorld's comparison research and news.
- [Events](https://flatworld.com/events/): Live webinars and workshops for instructors.
- [Support](https://support.flatworldknowledge.com/en/): Help center and contact for students and instructors.

## Optional

- [Privacy Policy](https://flatworld.com/privacy/)
- [Terms and Conditions](https://flatworld.com/terms-and-conditions/)
- [Sitemap index](https://flatworld.com/sitemap_index.xml)