Concentration is to direct one’s attention to one thing. The mind is the ability to focus on a subject, object or thought. It is also able to move away from anything other than focused.
A person who is concentrated, he focuses on a single event. It separates your mind from everything else. All the energy of the mind is spent for that event. Studying 10 minutes as concentrated is more useful than studying 1 hour without careness..
How to Improve Concentration?
1- Gradually increase your concentration. Start by holding for 10 minutes. Increase the duration.
2- Find out and list the events that distract you.
3- Increase your will. The more you judge your own mind, the higher your concentration.
4- Meditate. >>> Easy Meditation
5- Focus on the present. (With awareness)
6- Perform physical exercises.
7- Read the books more carefully and slowly.