This book is one of the best books out there for the budding bassist, in my opinion. Ed Friedland, an experienced instructor and seasoned studio bassist, really lays down a solid foundation for understanding the role of the bass and how to fit in with the band.
Some definate pro's would be Ed's lively writing style and clear descriptions of the examples being played. Instead of pulling random grooves out of nowhere, he really gives solid insights on the music. And the examples are clearly first rate and give good bredth within different genres. He also gives very good ideas simply on becoming comfortable playing the instrument, which I've found is one of the biggest concerns for beginners.
The book does not go without a few cautionary bits, however. Ed Friedland highly recommends getting a drum machine to jam along with (he even writes out the drum parts). This naturally, is great advice if used, but without a drum machine (or, better yet, a real live drummer!), the book really can't be enjoyed to the same extent. So if you don't have a drum machine and have absolutely no interest in getting one ever, this book might not be the best option. Also, one should note that though this book covers many different genres, it doesn't go into real depth concerning any particular one. So, if, for example you dig motown, heavy metal, or whatever, try getting a book that focuses specifically on that style in addition to this book. Concerning just pure insight and ecclectic examples, this book rocks, but this shouldn't be the only book in your bass library if you are interested in diving deep into a specific genre.