In the implementation of inclusion in schools, students with emotional and social development issues represent a particularly persistent problem group and a lasting burden for teachers. This book provides foundational knowledge on the emergence and manifestation of behavioral disorders, combined with practical resources for daily teaching practice in secondary education. Special emphasis is placed on basic information regarding diagnostics, support, intervention methods, and training programs. In a second step, the most common manifestations of problematic behavior are discussed in connection with specific didactic and methodological recommendations. Finally, a toolbox offers teachers tested instruments that can be effectively used for specific problems.