The document discusses trends driving the shift towards agile practices for requirements. It emphasizes that agile requirements focus on participation, team learning, and feature trade-offs. It also discusses agile architecture and how requirements landscapes have changed. Various agile practices for requirements are presented, including starting with a glossary, using scenarios and visualizations, and framing requirements in terms of domains of interest, problem/solution spaces, and stakeholder goals. The document advocates an iterative approach to requirements from coarse-grained to fine-grained and emphasizes the value of active stakeholder participation, modeling simply, and proving requirements with code over documentation.