A flip chart can be used to visualize and highlight key points and to respond to and capture input from the audience. Flip-chart preparation requires mimimal lead time and is inexpensive. Among these tips are the following: Prepare pages in advance with light pencil. Practice printing in block letters. Put a brief title on completed pages and post them on the wall. Use watercolor markers and leave a blank sheet between pages to prevent bleed-through. Use several easels for developing complex concepts.