Other
Research Assistant: For Students: Purpose Statement
This site gives advice on how to write an effective purpose (thesis) statement. The summary is given as answers to four questions: what? why? when? how?.
University of Washington
Guide to Writing Thesis Statements
These guidelines show how to write effective thesis statements with examples of effective and ineffective statements.
Cambridge Rindge & Latin School
Cambridge Rindge & Latin School: Writing a Statement of Purpose
An excellent tip sheet for creating and perfecting a statement of purpose. Also includes information about thesis statements and examples.
San Jose State University
San Jose State: Writing a Winning Statement of Purpose [Pdf]
How do you write a winning statement of purpose? This is a clear and comprehensive explanation of how to approach and write an essay from the San Jose State University. Practice exercises are given at the end.
Other
University of Missouri Rolla: Purposes in Writing
What are purposes in writing? Use this site from the University of Missouri-Rolla to learn more about the parts of the communication model. W.9-10.10 Write Routinely