# Gamma-ray emitting AGN and GLAST

## TL;DR

This paper reviews the classes of AGN, their unified schemes, and the properties of gamma-ray detected sources, predicting the types of AGN GLAST is likely to observe, emphasizing the prominence of blazars.

## Contribution

It provides a comprehensive overview of AGN classes, their gamma-ray properties, and makes predictions about GLAST's future detections, highlighting the importance of blazars.

## Key findings

- Most gamma-ray sources are blazars.
- GLAST is likely to detect many blazars.
- Predictions range from certain to less probable AGN detections.

## Abstract

I describe the different classes of Active Galactic Nuclei (AGN) and the basic tenets of unified schemes. I then review the properties of the extragalactic sources detected in the GeV and TeV bands, showing that the vast majority of them belong to the very rare blazar class. I further discuss the kind of AGN GLAST is likely to detect, making some predictions going from the obvious to the likely, all the way to the less probable.