First, by looking at the Goal Setting Blueprint, you will get an overview of goal setting theory through 7 key steps.

The goal setting theory continues with
Step 1 - Intense Desire: Rocket Fuel For When You Set Goals!

Focusing on the role of writing down goals, the next article is entitled:
Step 2 - Writing Goals Down Ties Them Up!

Two important factors are then considered from goal setting theory:
Step 3 - To Reach Goals: Bypass Resistance & Gather Assistance

Planning receives thorough consideration in the next two articles:
Step 4 - Goal Planning: Use Deadlines As Lifelines
Step 5 - Goal Objectives: Looking Ahead To Get Ahead With Planning

Visualization is the subject of the next item in the series on goal setting theory:
Step 6 - When Reaching Goals Use Mental Pictures: Put An MGM Studio In Your Head!

A fitting conclusion to the 20 minute tutorial emphasizes the need for persistence.
Step 7 - Achieving Goals: The Remaining 90% - Sheer Persistence

These goal setting articles are written in an easy to understand, concise style, ideal for a quick overview of goal setting theory.