1 Introduction

2 Euclid observables
2.1 Angular power spectra
2.2 Source galaxy redshift distribution

3 Measurement errors

4 Mock data generation

5 Forecasting

6 Results
6.1 Varying the number of redshift bins
6.2 Bias modelling and small-scale cut-off
6.3 Combining data sets
6.4 The effect of shear-galaxy cross-correlation
6.5 The role of linear spectral shape evolution
6.6 Modelling of the neutrino mass spectrum

7 More complex cosmological models

8 Conclusions