1 INTRODUCTION
2 RECONSTRUCTION WITH NOISE
2.1 Review: Peak broadening in Lagrangian Perturbation Theory
2.2 Review: Reconstruction algorithm
2.3 Reconstruction with noise
2.4 Isotropic example
3 ANISOTROPIC RECONSTRUCTION
3.1 Formalism
3.2 Example: 21 cm wedge
3.3 Filling in the wedge
4 DISCUSSION