This book is devoted to the issues of artificial intelligence (AI), that is, methods and technologies designed to make software smarter and more useful. The algorithms considered are mainly intended for embedding into other software, which allows you to create programs that flexibly adapt to the requirements and habits of the user. A number of AI algorithms are described here - neural networks, genetic algorithms, rule-based systems, fuzzy logic, ant algorithms and smart agents. Implementation examples are given for each algorithm. Some of these applications are applied in practice, others are more related to theoretical research.