1. Introduction

2. Terminology

3. Average Spectral Properties

4. Monte Carlo Simulations

5. Systematic Uncertainties

6. Source Counts Distributions
6.1. Standard Approach
6.2. A Global Fit
6.3. The Total Sample of Point Sources
6.4. FSRQs
6.5. BL Lacs
6.6. Unassociated Sources
6.7. Unfolding Analysis
6.8. Comparison with Previous Estimates

7. Analysis in the Different Energy Bands

8. Contribution of Sources to the Diffuse Background
8.1. Additional Tests
8.2. Source Count Distribution above 300 MeV
8.3. Simulating a log N – log S without a break

9. Discussion and Conclusions