This book allows the reader to acquire step-by-step in a time-efficient and uncomplicated the knowledge in the formation and construction of dynamic models using Vensim. <p> Many times, the models are performed with minimal current data and very few historical data, the simulation models that the student will design in this course accommodate these analyses, with the construction of realistic hypotheses and elaborate behavior models. That's done with the help of software Vensim that helps the construction of the models as well as performing model simulations. <p> At the end of the book, the reader is able to: <br>- Describe the components of a complex system. <br>- Diagnose the natural evolution of the system under analysis. <br>- Create a model of the system and present it using the simulation software. <br>- Carry out simulations with the model, in order to predict the behavior of the system.<p><b>The book contains downloadable material ! <p><p>Environmental Area <P></b>1. Population Growth <br>2. Ecology of a Natural Reserve <br> 3. Effects of the Intensive Farming <br> 4. The Fishery of Shrimp <br> 5. Rabbits and Foxes <br> 6. A Study of Hogs <br> 7. Ingestion of Toxins <br> 8. The Barays of Angkor <br> 9. The Golden Number<p> <b>Management Area </b><P>10. Production and Inventory <br> 11. CO2 Emissions <br> 12. How to Work More and Better <br>13. Faults <br> 14. Project Dynamics <br> 15. Innovatory Companies <br>16. Quality Control <br> 17. The impact of a Business Plan <p><b>Social Area </b><p>18. Filling a Glass <br> 19. A Catastrophe Study <br>20. The Young Ambitious Worker <br>21. Development of an Epidemic <br>22. The Dynamics of Two Clocks <p><b>Mechanical Area </b><p>23. The Tank <br> 24. Study of the Oscillatory Movements <br>25. Design of a Chemical Reactor <br> 26. The Butterfly Effect <br> 27. The Mysterious Lamp<p><b> Advanced Exercises (Vensim PLE PLUS) </b><p>28. Import data from an Excel file <br> 29. Building Games and Learning Labs <br> 30. Interactive models <br> 31. Input Output Controls <br>32. Sensitivity Analysis <p><b>Annex</b> <p>I. Guide to creating a model <br> II. Functions, Tables and Delays <br> III. Frequently Asked Questions FAQs <br>IV. Download the models of this book<p><b>The author</b><p>Juan Martín García is teacher and a worldwide recognized expert in System Dynamics, with more than twenty years of experience in this field. Ph.D. Industrial Engineer (Spain) and Postgraduated Diploma in Business Dynamics at Massachusetts Institute of Technology MIT (USA). He teaches Vensim online courses in <i> http://vensim.com/vensim-online-courses/ based on System Dynamics.