Noob grower needs some advice

[chillbrah]

Pic1 is a 1 month old LST'd plant
Pic2 is a 1 month old TOPPED plant.
Pic3 is a 1 month old natural plant.

i don't mean to threadjack but i've seen these terms used a lot and i don't know what they mean FIM too is another one i don't understand.