Incomplete guide. Just a cookie-cutter ADC item build and obvious descriptions of what her abilities do, about as much information as playing against her once or twice in lane. try lane matchups, support synergy, helpful tips, general playstyle.

Isnt it more look Bloodthirster is to be changed out with Blade of the Ruined King?
Usually i get the Blade when the enemie has 2 or more heavy armor heavy HP targets and since the proc on the blade is physical dmg, its worth **** without any penetration?

It's a guide of decent description. I think you should go into more detail with your item choices for players who are new to LOL. I personally played Caitlyn for a very long time and I would suddgest adding a section on good support synergy. Because Soraka makes Caitlyn never oom in lane. If this helps +repme.