What next? I am feeling lost.

Hello.
I am at the last page of my Swedish programming book. Most of my knowledge today is about applets. I know how to add and use action listener with buttons and text fields and I know how to make simple 2D animations. I know some about object orientated programming and I am trying to learn how to use API to find answers and solutions. My goal is to learn how to write a good-looking Graphical User Interface with child windows and every component a good GUI might need.
I don't know what to do next or where I can find new knowledge. Please recommend good books for learning how to write good GUIs!
I really could use a good overview of this language. Is there a good howto explaining the difference between Swing, Awt, Frame, Applet etc somewhere? please help me out, I am feeling really lost.

thank you. I am currently reading the page.
but what is really the difference between Awt and Swing? I noticed that a button with ActionLister can be done with help of Awt and Swing. You import very similar:
import java.awt.*;
import java.awt.event.*;
vs
import java.swing.*;
import java.swing.event.*;
so what is the difference between awt and swing?

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