This document introduces and explains the moment distribution method for analyzing indeterminate structures. It describes that prior to 1932, there was no practical way to analyze highly indeterminate structures. The moment distribution method is an iterative process that distributes moments at joints based on each member's stiffness. It involves calculating stiffness factors, distribution factors, fixed end moments, distributing moments, and carrying moments over between joints. The method allows for analyzing structures that were previously too complex using other methods.