http://www.thegnomonworkshop.com/store/product/263/
Texture Painting: Weathered Surfaces
Photorealistic Texturing with Paul Campion
this is tutorial in which i learned how PROs doing texturing and its really great and helpfull. . . (warrning : texturing is time consuming

u will understand texturing proccess, connecting your modeling software with photoshop
and these tehniqs are great if you want to creat somthing real from reference images
u will be able to learn how to create reflecion, bumps, normls etc in PS, u will be master of reflections, normals cos u will be createing them how u like
This tutorial is part of my VIP software which i carrey around with me

if you need fast results then use programs like shadermap or something like that which is great too
+ blender UV + little painting in PS + octane render = great results
i hope this helps
