The World Bank Group Publications Editorial Style Guide is an essential reference for manuscript editors (substantive and mechanical editors), proofreaders, and production editors. It is a supplement to other editorial references, in particular, The Chicago Manual of Style (annual subscription available online), 17th edition, and Merriam-Webster's Collegiate Dictionary, 11th edition. It focuses on issues specific to the World Bank/International Bank for Reconstruction and Development (IBRD) or for which Chicago provides multiple options. The professional recommendations made in the guide are designed to meet the following objectives: • To ensure that every publication achieves a standard of professionalism appropriate for the World Bank and on par with the publications of similar organizations, • To ensure stylistic consistency, primarily within individual publications and secondarily across all World Bank publications, • To increase efficiency by eliminating the need to repeatedly address the same stylistic details for every publication.