Charts of a stock tell us a great deal. Learn how to read them. The other two main points are the type of Company and its business. Is the company on the move and growing and is its business in demand. ie. rich coal and coal in demand would be a good start. But you need to be convinced of these things for yourself.
In looking at charts, have a look at say OGC, it has risen a great deal over the last eighteen months. Without going into what it is and why it has done well, if you match up such a chart with the ASF thread OGC you can go back and read why this stock did so well, you can look at all the inputs of different ASF members, and as you read through continue to refer to the chart against the date of respective posts, and from that you will soon pick up some clues as to how to tackle this business in a manner that should serve you well.
In looking at any other companies mentioned in the discussions, check out a chart of the stock for at least the last 12 months and read through all the posting on it to define why it has performed as it has.
I use "bigcharts" which is easy to download and use, it is free and the charts are very clear to look at.
And never be put off in asking a question, the reply may not only help you but many others as well. I am happy to take p/m's. Cannot give you advice but willing to tell where to look for answers.