Preliminary Instructions are instructions that are needed before a task can be started. These instructions can be used to set expectations, provide guidance, and provide a starting point for a task. There are three different types of Preliminary Instructions. The first type is Pre-Task Instructions, which provide the necessary information needed to begin a task. This includes details such as a description of the task, the expected outcome, and any relevant safety measures. The second type is Pre-Process Instructions, which provide guidance on how to complete the task. This includes instructions such as the steps to follow, the materials and tools needed, and any special techniques that need to be used. The third type is Post-Task Instructions, which provide guidance on how to finish the task. This includes instructions such as cleaning up the workspace, submitting the results, and any follow-up tasks that need to be done. Overall, Preliminary Instructions are an important part of any task and should be used to ensure that the task is completed successfully and safely.