Designed for legal professionals, regulators, compliance officers, ESG managers, in-house counsel and academics, this volume offers a systematic and practice-oriented analysis of the human rights impact assessment methodologies introduced by European legislation in the fields of AI and corporate sustainability. Following a methodological introduction, the book is structured in two parts: the first examines the principles, legal foundations and operational phases of Human Rights Due Diligence (HRDD) under Directive (EU) 2024/1760 (CSDDD); the second explores the scope, obligations and practical implementation of the Fundamental Rights Impact Assessment (FRIA) under Article 27 of the AI Act (Regulation (EU) 2024/1689). A final appendix provides operational models and case studies to integrate HRDD, FRIA and other risk assessments, looking for an integrated compliance: a technical and strategic guide to navigating digital-era regulation.