I consider myself as very amateur in this photo-world, I would like to know more about this business.!

I'm starting with this equipment: Nikon D5300 (Lenses: 35mm 1.8g Nikkor, 18-200 3.5-5.6 VR II Nikkor, Tamron 70-200 2.8g USD, Tamron 90mm Macro F017, Sigma 18-35 1.8g)....