The topic of evaluation in developmental community has gained importance and its usage is increasing. The World Bank is one of the largest multilateral developmental agencies and is a leading organization in evaluation. Therefore, this book assesses project evaluations of World Bank by analyzing projects implemented in Western Balkan for a period of ten years. Western Balkan represents all types of projects that World Bank implements worldwide by making it an interesting subset to analyze. The purpose of this book is to find out how informative are these evolution reports in the sense of the output that can be interpreted from them. Thus, having or not having informative reports show also how accountable or not accountable, respectively, is the bank to other stakeholders. The results show that the bank has a high degree of accountability toward other stakeholders like donors and intended beneficiaries. These findings apply particularly to Western Balkan region, but taking into consideration that this region presents a comprehensive range of projects that the bank implements, there is a high likelihood that the same results would be found in other regions.