General Strategies
One of the best things about Thief II is how open-ended the challenges can be. To survive, you must be highly aware of your surroundings and inventory.
Know the Area
Looking around is very important. While it may seem obvious, you'll be surprised how many treacherous situations can be avoided just by looking up or down and finding another route through the area.
Be Patient
Wait. Learn the guard patrols. Don't go running all over until you know what's ahead. You can often simplify an entire section of a mission just by standing in the shadows and knocking out guards as they walk by, one by one. And if you're spotted or heard, hide somewhere and wait. The guards will eventually give up the search, as long as you remain hidden.
Listen
Sound is your worst enemy and your best friend. Lean into doors and listen for passing guards. Hide in the shadows and listen to conversations. You'll not only save yourself from getting caught, you'll pick up important clues. Know, too, that your enemy is listening. And if he's alerted to your presence, the softest sound will be all he needs to find you.
Know Your Tools
Study the tools section to learn each tool's strengths and weaknesses. Learn to use them in combination. For instance, flash bombs and your blackjack work great together, as do moss arrows and invisibility potions.
Search Everything
You need loot. And it's not always in the most obvious areas. Look everywhere for anything of value. Even a handful of coins will help pay for another water arrow in the next mission.
Clean Up After Yourself
Make sure you hide every unconscious body you can. Even if you think the coast is totally clear, you never know when someone might stumble into a room. Likewise, close doors behind you and do everything you can to keep up the appearance of normalcy.
The Interface
Thief II has some important commands that are strangely unmapped to keys when you begin. It is recommended that you switch to the old Thief interface. The major changes are as follows:
S - Slow move forward
X- Move backward
C - Crouch
This will let you use the slow movement, which is very useful when you're trying to remain silent in heavily guarded areas.
The Last Resort
To skip to the next mission, simply press Shift+Alt+Ctrl+End simultaneously.
Next:
The walk-through 
