  This is an excellent, if challenging  introduction to quantum foundations. The book is unparalleled in  clarity and uncompromising in its insistence on ontological  intelligibility. It is more selective than Lewis and Barrett’s  book (it covers Everettian Quantum Mechanics and Bohmian  Mechanics and Spontaneous Collapse theories, but the Copenhagen  approach is dismissed because it doesn’t have an explicit  ontology). The author makes no bones about where his own  sympathies lie, but it will reward the study of any beginning  student or seasoned practitioner.  