3D "modeling from life" primer?

 From:  angeliclight
1507.1 
Hi, there,

I often see others using plans and photos to model real life objects - cars, trains, etc. - and I'm sure that there's a generic modeling process no matter what modeler you use, but as a newbie to 3D I'm at a loss of how to use photos, plans, etc, to actually model from.

Does anyone know of any generic modeling tutorials that describe how to take the different plan/photo views and make an accurate model from them?

Thank you, and sorry to bother anyone if this is obvious or was already discussed.

Have a good weekend, everyone,

- A