# Taxo v0.2.0 - Table of Contents

> Taxo is an Elixir port of the Clojure hierarchies provided by `derive` and `underive`.

## Pages

- Guides
  - [Taxo](readme.md)
  - [How hierarchies work](hierarchies.md)

- About
  - [Changelog](changelog.md)
  - [License](license.md)

## Modules

- [Taxo](Taxo.md): Taxo builds and queries tag hierarchies.

- Exceptions
  - [Taxo.CyclicDerivationError](Taxo.CyclicDerivationError.md): `Taxo.derive/3` raises this error when a new parent/child relationship
would create a cycle in the taxonomy.