I have been looking for a good mechanic to do some work on my car. I want to find one who will not make things worse.
Yes.  It is a good idea to look for a mechanic who specializes in your particular vehicle.  There are a variety of "mechanics."  But if you should look for one specific to your vehicle.  
Yeah, I wouldn't want a mechanic specializing in luxury vehicles working on my Ford pickup truck.
may be separated into two classes based on the type of machines they work on, heavyweight and lightweight. Heavyweight work is on larger machines or heavy equipment, such as tractors and trailers, while lightweight work is on smaller items, such as automotive engines.
Auto mechanics.
Auto mechanics have many trades within. Some may specialize in the electrical aspects, while others may specialize in the mechanical aspects. Other areas include: brakes and steering, suspension, automatic or manual transmission, engine repairs or diagnosing customer complaints.
, would find something to identify with in my books, pick up one and experience a personal sense of discovery. That's great. I think that if you're a creative person, you should just go about your business, do your work and not care about how it's received. I never read reviews because if you believe the good ones you have to believe the bad ones too. Not that I don't care about success. I do, but only because it lets me do what I want. I