From the reviews: "It may be one of the best books I ever read ... . The book is best described as a drawerful of ambitious, thought-provoking research questions. Some will inspire you to go search for more literature, and some might even get you started on new research topics. ... this collection is a fascinating bouquet of research questions to pursue or suggest to your students. ... I am convinced that this collection will nurture future research and be a great source of inspiration for young researchers." (Anders Sogaard, Studia Logica, Vol. 87 (361-365), 2007)