Positioning Your Library for the 21st Century: Strategies for Engagement, Relevance, and Sustainability identifies and removes hidden barriers, equipping readers to enable libraries to uncover and eliminate operational and communication barriers that limit access, reduce engagement, or disproportionately impact underserved populations. The book provides readers with practical crisis response tools, delivering sample plans, templates, and checklists to help libraries prepare for immediate, emerging, and sustained crises, thus ensuring a confident, coordinated response when it matters most. Sections navigates advocacy and neutrality, enabling readers to support libraries in balancing commitments to equity and social justice with the responsibility to maintain broad public trust across diverse political and cultural perspectives, while also encouraging library leaders to examine the narrative they share with stakeholders and how that narrative supports or undermines long-term goals, relevance, and community support. Equips library leaders and communicators to improve access, increase engagement with audiences, prepare for crises, and advocate effectively Includes actionable guidance, frameworks, examples, and tools to address specific challenges and strengthen library relevance and trust Emphasizes the removal of barriers to library access for marginalized communities, making services more equitable and communications more inclusive Provides examples and case studies that highlight diverse library audiences and practical steps toward greater equity Addresses the key knowledge and information needs of readers in understanding how to effectively incorporate social justice initiatives and advocacy into library leadership and operations.