Writing an acknowledgment means letting people know that you are grateful for the help their help in your project. It could be anything from a research project to a fantasy novel - thanking people who contribute is a must. Acknowledgments, mostly names of people and institutions, are usually written at the beginning of the work. They need not be written; they can be verbally mentioned in a speech too. What you need to remember is not to forget anyone in this speech. For some famous acknowledgment quotations and sayings, flip through the next bit!