> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-fix-nav-issues.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Landing page for concepts

In this section of the docs we'll dive into the concepts around what makes ClickHouse so fast and efficient.

| Page                                                                       | Description                                                                           |
| -------------------------------------------------------------------------- | ------------------------------------------------------------------------------------- |
| [Why is ClickHouse so Fast?](/get-started/about/why-clickhouse-is-so-fast) | Learn what makes ClickHouse so fast.                                                  |
| [What is OLAP?](./olap.md)                                                 | Learn what Online Analytical Processing is.                                           |
| [Why is ClickHouse unique?](/get-started/about/distinctive-features)       | Learn what makes ClickHouse unique.                                                   |
| [Glossary](/concepts/core-concepts/glossary)                               | This page contains a glossary of terms you'll commonly encounter throughout the docs. |
| [FAQ](/resources/support-center/knowledge-base/general-faqs/faq-index)     | A compilation of the most frequently asked questions we get about ClickHouse.         |