In practice, requirements engineering tasks become more and more complex. In order to ensure a high level of knowledge and training, the International Requirements Engineering Board (IREB) worked out the training concept 8220;Certified Professional for Requirements Engineering8221;, which defines a requirements engineer8217;s practical skills on different training levels. The book covers the different subjects of the curriculum for the 8220;Certified Professional for Requirements Engineering8221; (CPRE) defined by the International Requirements Engineering Board (IREB). It supports its readers in preparing for the test to achieve the 8220;Foundation Level8221; of the CPRE.