Summarize the following:
You can collect your own data by interviewing people or counting items, or you can use data that has already been collected.  Gather information from online sources to collect data on a certain event. Ask friends and family to respond to your question and collect data from people you know. Compile all of your data and numbers into a list.  Organize your data into a table with each item labeled and explained. Make sure that you have collected enough information to answer the question or present the information that you want your pictograph to represent. If you are collecting information on states, make sure you have collected data from many different states to accurately represent your data.

Summary:
Pick a source for the data your pictograph will represent. Make a list of all the data you have collected. Review your numbers.