1. To spark an interest, interpreters must relate the subject to the lives of the people in their audience.
2. The purpose of interpretation goes beyond providing information to reveal deeper meaning and truth.
3. The interpretive presentation - as a work of art - should be designed as a story that informs, entertains, and enlightens.
4. The purpose of the interpretive story is to inspire and to provoke people to broaden their horizons.
5. Interpretation should present a complete theme or thesis and address the whole person.
6. Interpretation for children, teenagers, and seniors - when these comprise uniform groups - should follow fundamentally different approaches.
7. Every place has a history. Interpreters can bring the past alive to make the present more enjoyable and the future more meaningful.
8. Technology can reveal the world in exciting new ways. Hpwever, incorporating this technology into the interpretive program must be done with foresight and thoughful care.
9. Interpreters must concern themselves with the quantity and quality (selection and accuracy) of information presented. Focused, well - researched interpretation will be more powerful than a longer discourse.
10. Before applying the arts in interpretation, the interpreter must be familiar with basic communication techniques. Quality interpretation depends on the interpreter's knowledge and skills, which must be continually developed over time.
11. Interpretive writing should address what readers would like to know, with the authority of wisdom and its accompanying humility and care.
12. The overall interpretive program must be capable of attracting support - financial, volunteer, political, administrative - whatever support is needed for the program to flourish.
13. Interpretation should instill in people the ability, and the desire, to sense the beauty in their surroundings - to provide spiritual uplift and to encourage resource preservation.
14. Interpreters can promote optimal experiences through intentional and thoughtful program and facililty design.
15. Passion is the essential ingredient for powerful and effective interpretation - passion for the resource and for those people who come to be inspired by it.

References:

Beck, L ., and Cable, T. Interpretation for the 21st Century: Fifteen Guiding Principles for Interpreting Nature and Culture. Second Edition.