Contents

1 Means, motive and opportunity for $z\ge2$ large-scale structure  
1.1 Cosmic Microwave Background lensing tomography  
1.2 Distinctive signatures of Inflation  
1.3 Breaking the $\{\Omega_{\Lambda},\,\Omega_{\nu},\,\Omega_{k}\}$ degeneracy  
1.4 Lyman-break galaxies as a tracer  
1.5 Outline  

2 Properties of Lyman-break galaxies and their selection  
2.1 Astrophysical properties  
2.2 Color tracks and selection  
2.3 Expected redshift distributions  
2.4 Schechter function estimates of the volume and angular number density  
2.5 Inferred clustering  
2.6 Tailoring the color selection  
2.7 Interloper redshift distribution  
2.8 Propagation of interloper bias to cosmological parameters  

3 Feasibility of spectroscopic followup  
3.1 Exposure time calculator  
3.2 Comparison with available studies  
3.3 Broader considerations  
3.4 Fiducial sample  
3.5 Potential spectroscopic facilities  

4 Implications for cosmological studies  
4.1 Likelihood of $C_{\kappa g}$ detection  
4.2 Redshift-space distortions  

5 Summary and conclusions