We are happy to announce that the book will be published at the ESOT Congress in Copenhagen in September. You are eligible for a free copy which you can get at the ESOT booth. You can also have a free download as a pdf file at the following link: https://www.semmelweiskiado.hu/letoltes/41  The book is copyrighted! It may not be copied or reproduced without the joint consent of the authors and the publisher. The electronic book can be downloaded free of charge until September 15, 2019.