This document provides an introduction and overview of procurement processes. It discusses that procurement involves obtaining goods, works, and services through an appropriate process. A key goal of procurement processes is to ensure quality, economy, and timeliness. The process should also adhere to standards, provide fair opportunities, and ensure honesty, transparency, and confidentiality. Ethics in procurement include avoiding conflicts of interest and not accepting gifts. Responsible entities in procurement include the procuring entity, procurement committee, and technical evaluation committee. Their roles include preparing documents, evaluating bids, and making decisions. Guidelines for procurement include those from FIDIC, the World Bank, ADB, and national agencies.