Book excerpt: The TYPO3 CMS Certified Developer book is the ideal study guide and the perfect choice for every TYPO3 developer preparing for the challenging TCCD certification introduced by the TYPO3 Association in 2016. It contains 150 example questions, possible answers and detailed explanations of which answers are correct and why. It allows extension developers to test their knowledge and to prove that they have the skills to write professional code according to the high TYPO3 standards. Officially certified TYPO3 developers benefit from the certification program in many ways. Agencies demonstrate that their team has the knowledge and experience to build TYPO3 projects of all sizes and complexities. Freelancers can produce proof of their skills to write professional code according to the high TYPO3 standards. Authored by Michael Schams and Patrick Lobacher, who are well-known members of the TYPO3 community, the book covers all exam topics and reflects the style and structure of the exam. TYPO3 CMS Certified Developer is the perfect choice for every developer to prepare for the test and master the exam.