Light Missiles are best for shooting at small targets (Frigates/Destroyers/Drones). Ships that tend to fly rather quickly. These 2 skills will both aid your missiles to apply thier damage to faster targets
Although not missile skills themselves consider adding as these allow to you use modules that enable missiles to strike thier targets with better effect. (these 2 are optional, feel no obligation to train them if you don't want to)
Bonus Skills Propulsion Jamming Target Painting
Add these 3 skills afterwards as they increase your raw dps