  These are advanced lecture notes covering recent developments in the
methodology used to analyse galaxy surveys. The focus is particularly on direct
measurements of the galaxy power spectrum although I also discuss its Fourier
transform, the correlation function for comparison. These 2-point statistics,
under the assumption that the overdensity field has Gaussian statistics on
large-scales, contain the majority of the cosmological signal available from
the galaxy distribution. Recent developments in multipole measurements, dealing
with systematics, convolving theoretical models with the survey window
function, the approximation of covariance matrices, and weighting schemes for
measuring evolution with redshift are considered. The focus is on analytic
explanation of the issues involved rather than on recent analyses or simulation
results.
