Multi-engine aeroplanes have unique characteristics that will require a separate class rating. 

The information provided in this book emphasizes the noteworthy differences between flying a multi-engine and a single-engine aeroplane and will give you the theoretical knowledge needed for the EASA multi-engine class rating. 

Proficiency in handling flight with one engine inoperative is just one aspect of safe multi-engine flying. While modern, well-equipped multi-engine aeroplanes can exhibit impressive performance and system redundancy in many scenarios, these safety advantages are only achieved if you have undergone appropriate training and are proficient in handling such situations.