Available in many languages, this guide is intended to help administrations and beneficiaries make the most out of EU investments. The aim of this document, now available in all EU languages, is to provide guidance to public officials, involved in the management of the European Structural and Investment Funds (ESIF), helping them to identify and avoid areas of potential risk of errors and adopt best practices when it comes to carrying out public procurement procedures, a major source of irregularities in the management of the funds. Although it does not provide legal interpretation of the EU directives, it represents a useful tool steering practitioners through the areas where mistakes happen most commonly, giving practical tips on how to avoid them and how to handle each situation in all main stages of the process. This document also lists a number of good practice, real-life examples, and explanations of specific topics, case studies and templates.  Visual tools, alert boxes, interactive elements, reference links to legislative texts, documents and sources of information further facilitates the use of this handbook.