# Fundamental Concepts

## Overview

HEALPix is a spherical tiling system with three fundamental properties:

1. **Equal Area** - All cells have the same area
2. **Iso-latitude** - Cells are arranged in rings of latitude
3. **Hierarchical** - Natural tree structure

For more details, see:

- {doc}`../healpix/index` - Complete HEALPix Introduction
- {doc}`../tutorials/quickstart` - Quick Start Tutorial
- {doc}`../terminology` - Glossary of Terms