This book provides an analysis of document types, their classification, and the basics of document workflow. It covers various categories such as business documents, contracts, and reports. Legal documents have legal force and are related to court decisions or laws. Statistics show that about 60% of documents in companies are of a commercial and financial nature, while 40% in state organizations are related to administrative and supervisory functions. Electronic documents are becoming more widespread, with 70% of companies expected to operate in electronic form by 2023