Twitter is a popular service that allows users to broadcast short messages (‘tweets’) for others to read. Over the years this has become a valuable tool not just for standard social media purposes but also for data mining experiments such as sentiment analysis. The twitteR package is intended to provide access to the Twitter API within R, allowing users to grab interesting subsets of Twitter data for their analyses. This document is not intended to be exhaustive nor comprehensive but rather a brief introduction to some of the more common bits of functionality and some basic examples of how they can be used. In the last section I’ve included a variety of links to people using twitteR to solve real world problems. Twitter client for R