-Should add more explanation to matchups sections. Like 70% of them have a bunch of words and thats it. Maybe you would like to explain them further on, so you can counter their abilities and have a simple; but safe, lane.

-Are you SURE about taking Oracle's Lens over Stealth Ward? You include a warding map, but you dont take wards at any point. About that, you should think about pointing out which wards are you going to use in lane phase, because that's a general warding map, like one for supports.

-As EdisonKhoo just said, why in the heck, WHY wouldnt you take hybrid over magic pen???

-Another thing. As Akali has one of the weakeast pre-6 of them all, you should consider buying different starting items depending on your opponent, since Cloth Armor is better than Doran's Shield for laning against AD mids, Zed, the very broken one Yasuo, or a weird (but not thaat bad) Lee Sin mid pick.

-For akali you should add in the Twilight Shroud explanation, that, if facing an opponent whos health is superior to yours, bait him a fight inside your shroud and attack and go invi, attack and go invi, and so on.

-I don't really think that Akali depends on his team. She´s one of the most feared assasins of them all, with lots of base damage and amazing burst.

-You NEED more items in itemization, even if those three are core or aren't, in that chapter there should be a list of core AND situational items than help you in each situation. All of those items are for replacing your beloved Deathfire Grasp, so why not include items to replace other core items?

-Taking the Enchanted Armor mastery without defensive items apart from guardian angel? You sure about that?

- Again, as EdisonKhoo said up there with that awesome signature, Pros/cons section should be just below the introduction section.

-I highly renommend C2V for ALL guide authors.

-Never EVAHR publish an incomplete guide. Thats a good reason for downvoting and people won't doubt in doing it.

I'm sorry that the comment had this length, but there are a lot of stuff to work up with in this guide. But don't worry, this will be good if you take some time to rebuild it.
Good luck

Your banners are nice but, don't publish incomplete guides cause you'll get a lot of downvotes D:

For Runes, why no take greater mark of hybrid penetration as main? Akali will be AAing too. Hybrid Pen just take a bit of Magic Pen and exchange with a lot of Armor Pen.

Itemization Chapter might wanna add more explanations on all items(including starting items)

Pros and Cons chapters move down to Introduction, it is more better :)

Well for warding, you shouldn't just put the Warding Picture, you should also explain why you need to ward there or there :3

I won't vote for now cause this guide is incomplete, if you have completed it, pm me and I'll come back here to look at your guide. Remember to turn on C2V to prevent troll votes.