The book outlines methods for recovering data from various storage media - hard drives, RAID arrays, CDs, DVDs, flash memory cards, camera cards and mobile phones. Repair of damaged equipment is considered in the publication only as one aspect of the entire data extraction process. The main topic is the extraction of data damaged due to physical or logical violations in the operation of the computer system or incorrect user actions. The book discusses the recovery of accidentally deleted files, retrieving valuable information from broken hard drives; describes programs and techniques for data recovery from damaged RAID arrays, which is critical for the operation of corporate computer systems. The book does not require special training for the reader: simple step-by-step procedures for data recovery are preceded by a description of the principles of storing them on various media.