This note series is intended to summarize lessons learned and key policy findings on the World Bank's work in education. The goal of Education for All (EFA) is to provide universal access to primary education throughout the world. To accomplish this goal, as many as 10 million classrooms will be built in developing countries by 2015. A key objective of the program is to ensure that no child is denied access to education because of disability. Cost is not a significant barrier to accessible design although it is often perceived to be one. Research has shown that the cost of accessibility is generally less than 1% of total construction costs. Estimates of costs developed by those with limited knowledge of accessible design often overstate the actual cost and ignore savings. Sometimes, the belief that accessibility costs more is founded in experience with projects where accessibility was introduced too late in the process or through experience with poorly designed, constructed or managed projects. To ensure that costs are controlled, it is critical to introduce accessibility in the early stages of project design. It is helpful to educate designers, builders and citizens about the purpose and benefits of accessibility to the whole community so that they understand the value of accessibility and work to find good solutions to difficult problems. Technical assistance should be made available to ensure that accessibility will be effectively implemented, especially when departures from standard accessible design are necessary in the course of a project. [This document was produced by the World Bank, Education Advisory Service.]