MT4 Interface Guide/Book

FF Friends, quick one..

is there any book written on MT4 and EA???? I found MT4 help which comes with the software totally useless. and where can i find user guide of MT4 which explains things in detail, forexample what "shift" value should be for bollinger bands? What are the Levels etc?

By the way, why there are 3 lines in bollinger bands? I thought it only shows two lines as shown on http://www.babypips.com/school/bollinger_bands.html

Regards

The centre line is the moving average, whereas the outer lines are placed x.x standard deviations away from it. If you dont want to see the centre line use the indicator in MT4 called "Bands" it is located in the custom indicators folder. With this one you can hide the centre line by changing its colour to "none".