Ebook: Semantic Web for the Working Ontologist: Effective Modeling in RDFS and OWL

Well respected and knowledgeable authors but should have invested in an editor and published their second draft. Besides the book saying everything twice, saying everything twice, there are grammatical mistakes, not a clear target audience in mind, confusing at times - for example, the introduction of new concepts use the new concept to describe itself - I would not recommend book for "a working ontologist". I am new to the semantic web myself and derived little value from this book.