This document discusses corpora and how they can be used to analyze language and support language learning projects. It defines what a corpus is, provides examples of online corpus tools, and describes how corpora can help learners by allowing analysis of real language examples. The document also outlines how to build, analyze, and apply a corpus, including collecting data, generating concordance lines and word lists, and identifying collocations and terms. Possible project ideas are to investigate topics, ask questions, and gather photos and interviews. Online corpus tools and resources are listed that can be used to analyze corpus data.