Many thanks to the author for doing a great job and assembling his advanced knowledge and experience in personal information management (PIM) domain into this book. PIM research is still very young, a rapid step from physical to digital environment has been mainly done on the cost of the user. Nowadays attention has been shifted to the user side. Companies that design and develop Information Management systems start paying more and more attention to PIM from an individual user perspective. The PIM research therefore flourishes, however, a solid, fundamental background was still missing. Many good works have been presented in PIM research over the last years, but this one is different for its fundamental, grounded approach towards PIM as a science. It is, on the other hand, full of practical, real life experiences and comments that make the book useful for a broad audience: from students to teachers, from software developers to project managers.