That's a pretty tall order. I don't think anybody is going to be able to just show you a drawing and explain to you everything you will need to know and understand. What kind of drawings will you be dealing with? Architectural? Mechanical? Civil? Electrical? All of the above? The kind of help you need will not be possible online in a forum. This is the type of thing that someone will need to spend some serious time with you going over a complete set of plans for whatever field you will be working in. Even then, you won't learn everything because every set of plans is a little different. You might want to check your local colleges and see if they have any classes on blueprint reading.