In this tutorial, Peter John teaches us how to palm read: Crosses & islands on the main lines. Lines in the hand show how a person makes a change. When there is an island on the hand, this means the person needs to slow down and be careful. This could also mean their work is going to slow down or something in their career is going to change. If the island continues on throughout the hand, this means the person will manage to carry on and stay within their line of work when they are challenged. If there's an "x" with the main lines, this shows someone will come up with a sickness or need an operation in their life. These are all key components to know when reading the hand, so practice and become familiar to learn more.