The book talks about the application of artificial intelligence and machine learning in business and engineering practice. Popular machine learning algorithms are described in detail and it is explained when it is advisable to use them. Examples of building machine learning models in Python using the Scikit-Learn library, as well as creating neural networks through the Keras and TensorFlow libraries are given. Basic principles and methods for evaluating regression models, binary and multiclass classification models are described. Examples of creating a face recognition model and object detection, language models that answer natural language questions and translate text into other languages ​ ​ are shown.