To a certain extent the term ‘retail banking’ has been replaced by ‘retail financial services’ and there is a growing emphasis on the products, distribution channels, customers and marketing rather than the type of institution or sector to which it belongs. Marketing and cross-selling of a broad range of financial products are now extremely important functions carried out by all players. The vast literature on banking overlaps considerably with general economics material and there is a considerable amount of academic literature. As well as market and company research, there are review and policy papers from the banks and building societies themselves, the central banks, international financial institutions, trade bodies and universities. The chapter provides an overview of the range and type of information available, rather than a comprehensive listing of all the sources. The resources listed in the chapter have been selected to reflect the broad spectrum of prices.