The book "100 Volumes of 'Notes on Numerical Fluid Mechanics'" is a comprehensive collection of 37 invited contributions compiled on the occasion of the hundredth volume of the NNFM series. It provides deep insights into the developments in numerical fluid mechanics and related fields. The structure of the book is divided into five parts, offering a general introduction as well as specific overviews of advancements in numerical fluid mechanics. The first part addresses the origins of the series and its context, while the subsequent parts discuss current applications in aerospace and the automotive sector. Additionally, applications in engineering and physics are covered, ranging from hydraulic machines to astrophysical questions. The final part of the book lists all previously published volumes of the series, thus providing a valuable overview of the developments in this field.