This booklet will provide an introduction to good practice in question and test design. It includes the art of using objective tests to assess some aspects of student learning. At the outset you should be aware that objective tests are just one method of assessment. They are useful for assessing knowledge, comprehension and application and in some circumstances can be used to assess higher order skills such as evaluation and synthesis. They cannot be used to assess creativity, integration of ideas and the capacity to develop a sustained argument. Examples in this booklet range widely over a number of subjects and they include mathematical questions written as part of the Computer Aided Learning in Mathematics (CALM) Project at Heriot-Watt University in Edinburgh.