Lee Sin is a mobile champion that can either be built as a tanky-DPS or an assassin. He runs on energy and can have a very dangerous (Kill Lane) laning phase or a very safe laning phase. Lee sin has 2 parts to all his moves and thus takes alot of time and effort to master.

Passive: Flurry- After Lee Sin uses an ability, his next 2 basic attacks gain 50% Attack Speed and return 10 energy each.
Your "energy management" skill. Mastery of this skill allows for more DPS and the ability to not run out of energy easily.

Q: Sonic Wave / Resonating Strike- Sonic Wave: Lee Sin projects a discordant wave of sound to locate his enemies, dealing 50/80/110/140/170 (+90% of bonus Attack Damage) physical damage to the first enemy it encounters. If Sonic Wave hits, Lee Sin can cast Resonating Strike for the next 3 seconds. Resonating Strike: Lee Sin dashes to the enemy hit by Sonic Wave, dealing 50/80/110/140/170 (+90% of bonus Attack Damage) physical damage plus 10% of their missing health. Cost 50/30 energy. Cooldown 11/10/9/8/7 seconds.
This skill is amazing for laning. This skill is a poke, gap closer, and a move to safely last hit all in one.

W: Safeguard / Iron Will- Safeguard: Lee Sin rushes towards a target ally, shielding them both from 40 / 80 / 120 / 160 / 200 (+80% per Ability Power) damage. After using Safeguard, Lee Sin can cast Iron Will for the next 3 seconds. Iron Will: Lee Sin's intense training allows him to thrive in battle. For 5 seconds, Lee Sin gains5/10/15/20/25 lifesteal, spell vamp, and armor. Cost 50/30 energy. Cooldown 8 seconds. Range 700.
This skill is a better udyr turtle stance. It is ranged, you can use other skills and still have the sustain, and you can shield on your minions forcing enemies to miss last hits.

E: Tempest / Cripple- Tempest: Lee Sin smashes the ground sending out a shockwave that deals 60 / 95 / 130 / 165 / 200 (+0.6 per bonus Attack Damage) magic damage and reveals enemy units hit. If Tempest hits an enemy, Lee Sin can cast cripple for the next 3 seconds.
Cripple: Lee Sin cripples nearby enemies revealed by Tempest, reducing their Movement and Attack Speed by 30 / 37.5 / 45 / 52.5 / 60 % for 4 seconds. Movement and Attack Speed recover gradually over the duration. Cost 50/30 energy. Cooldown 10 seconds. Range 450.
This skill makes lee strong against melee champions top lane. It is a malphite ground pound with the added benefit of its magic damage on a melee champion allowing lee sin to be really hard to itemize against.

R: Dragon's Rage- Lee Sin performs a powerful roundhouse kick launching his target back, dealing 200 / 400 / 600 (+1.5 per bonus Attack Damage) physical damage to the target and any enemies they collide with. Enemies the target collides with are knocked into the air for a short duration. Cost 0 energy. Cooldown 90 / 75 / 60 seconds.
Knock back that knocks up all enemies hit. This skill does amazing damage, and if it is well aimed in a teamfight it can be a complete game changer.

Skill Order:

R>Q>W>E

Use this if you want to be more of a DPS assassin or want to have more of a kill lane then a safe lane.

R>W>Q>E

Use this skill order if you want to be more of a sustained " Warwick" type of fighter. With this max you can stay in lane forever.

Combos:

From melee range:

E-auto-E-W-auto-W-Q-auto-Q-(R for kill)

From a distance:

Q-Q-Auto-E-Auto-E-W-auto-W-(R for kill)

Akali (No circle for her), Wukong (Decoy not very tricky, kick you away when you ult), Kennen (Both energy, if you Q me I Q you. Kick you away when you ultimate), Fiora (Your E will wreck her), Garen (Use gorilla warfare, Dash in at him to bait his Q or E then shield away before/right as you reach him.), Talon (sustain your poke, see through your ultimate), and Jarvan IV (Demacia, oh wait you just shielded out -.-).

Udyr (In lane hes a better you.), Yorick (Max shield and farm, you wont kill him), Olaf (He will true damage spam all day, it does more damage than you can trade/hope to heal back), Renekton (He will beat you up pretty bad early on), and Jax (Hes the champ).

• If you are in melee range save your dash from the Q until: 1. Its about to run out, 2. You kick them and use this to close the gap back, or 3. They flash and you can use this to catch them.
• If you Q and enemy dash and as you are dashing shield to a minion you can make them waste some skills.
• Tempest before you enter a bush, It gives you sight and allows you to land your Q easier as a followup if they were there.

• If Lee has a ward in his inventory pretend he has flash up.
• Remember lee sin's kick has no energy cost, if you try and fight him because he has no energy factor in that damage.
• Do not let lee kick you into your team, make it so if he kicks you, you will not makethe rest of your team suffer.

Bloodthirster- Sustain, Damage <3.

Wriggle's Lantern- Good in lane if you are maxing shield, as the heal from th shield goes of wriggle proc's.

Frozen Mallet- Allows you to keep on a target, and makes you harder to kill

Last Whisper- Screw Armor

Maw of Malmortius- Good vs AP lane, gives you a strong lategame when you are low with the sustain on your W.

Guardian Angel- Keeps you alive and kicking. xD

Lee Sin is strong in soloQ as his mobility and damage allow him to be a strong solo champion. Lee sin also has very good matchups and can fight vs almost any lane.

Lee Sin is a strong pick here if your team is coordinated. If you have a team that can force enemies into position for your kick you can get the best possible ultimate.

This was my top facts lee sin the blind monk. Lee Sin is a fun to play very strong lineup that can be useful to any team that gets him. Lee Sin does have a decent amount of skill required to play him as all his moves require watching positions of your allies and your enemies. As always have a good day and good luck on the fields of justice.

SERIES UPDATE:
I plan on releasing these every day/other day until I get all of the top lane picks in the league ( about 50-60 of them) if there are any requests leave in the comments below and ill work on them. I want to make this series for others to better understand the champions of top lane. Once I am done (Or once I have a few top facts out) I will release some Facts about top lane mechanics, eventually I will probably put everything into one generic top lane guide, however until I do that I will continue to watch and update my blogs as needed. Tips and tricks I missed under my Top Facts would be helpful if you put anything I don't have in the comments I will be sure to add it. I will be forming a guide called The complete guide to Top lane or something in that nature. The intention of this series is not as a "Build guide" or a "play guide", these are more like facts you should know about the champion. These are to inspire people to think of new champion possibilities they might not have thought of or to help a new player with the champion. I do not list runes masteries or a set build ( I give a kind of recommended items) in here due to the fact I want people to think of that for themselves and try new things. This series is an attempt for the LOL community to try new things and have fun in a fun game. Thank you for reading and have a nice day :P