I truly believe that every car owner should purchase a Haynes manual to go with their car. Even the most seasoned DIY owner can be thrown off by the unfamiliar designs of their new car and owner's manuals can often be lacking in certain critical areas (and as seems to be the very bizarre case with Audi A4s of the B6 and B7 generation, the owner's manuals oftentimes seem to just be lacking- as in totally absent from the car. It's a very well known thing... check it out), so something which goes into deeper detail is a must. Having all the torque specs, gap settings, bolt types, fluid levels, OEM part numbers, etc., a book like this is essential. As simple as Google is to use, it can be frustrating to try and look up torque specs on a car that is known for having a gang of gnomes seemingly roaming around stealing the manuals, then you go onto a forum, ask what the torque specs are, and the first reply you get is "Read the manual"