1914–1919 | EARLY LEADERSHIP

The American Association of School Librarians (AASL) was first established as a section of the American Library Association (ALA)—and later (1951) as an independent division—to support the emerging profession of school librarianship. From its earliest years, the organization recognized the importance of establishing shared standards and professional guidance for effective school libraries to ensure equitable access to information resources for learners.

1920–1959 | FOUNDATIONAL WORK

As school libraries became more established within education systems in the early twentieth century, standards focused on defining the essential elements of effective school libraries, including collections, facilities, staffing, and access to resources. These efforts helped formalize libraries as essential components of educational infrastructure.

Key Milestones

1920 — Standard Library Organization and Equipment for Secondary Schools of Different Sizes
One of the earliest national standards documents outlining expectations for secondary school libraries.

1925 — Elementary School Library Standards
Guidance expanded to include standards for elementary school libraries.

1930s–1940s — Continued development of school library guidance
Professional organizations refined recommendations to support school library services nationwide.

1945 — School Libraries for Today and Tomorrow: Functions and Standards
Post–World War II education reforms renewed attention to strengthening school libraries.

1960–1987 | STANDARDS AND SOCIETAL CHANGE

Rapid social, technological, and educational change reshaped school libraries during the mid-twentieth century. Audiovisual resources began to expand the concept of library collections, and standards increasingly emphasized instructional support with greater collaboration between librarians and classroom educators.

Key Milestones

1960 — Standards for School Library Programs
Recognized the library as an important support for the instructional program.

1969 — Standards for School Media Programs
Standards expanded to include audiovisual materials and emerging educational media technologies.

1975 — Media Programs: District and School
Guidelines addressed coordinated media services at both district and school levels.

1980s — Research and national guidelines evolve
Research connected school libraries and librarians to student achievement as guidance adapted to new technologies and educational priorities.

1988–2006 | INFORMATION POWER ERA

The publication of Information Power in 1988 marked a major shift in how school libraries were understood within education. Rather than focusing primarily on collections, the framework emphasized the school librarian’s role as an instructional partner who collaborates with classroom educators.

As digital environments expanded during this period, school librarians increasingly helped learners navigate complex information systems and develop critical thinking skills. The revised Information Power: Building Partnerships for Learning (1998) strengthened this focus on inquiry-based learning, collaboration, and information literacy instruction.

Together, these developments positioned school libraries as active learning environments where students develop the skills needed to work with information in meaningful ways.

Key Milestones

1988 — Information Power: Guidelines for School Library Media Programs
Introduced a framework emphasizing collaboration and instructional leadership.

1990s — Technology and information access expands
Growing digital access reshaped teaching, learning, and library services.

1998 — Information Power: Building Partnerships for Learning
Strengthened the focus on information literacy, collaboration, and inquiry-based learning.

Early 2000s — Expanding Digital Information Environments
School librarians increasingly supported learners and educators in navigating and evaluating online information.

2007–2016 | EMPOWERING LEARNERS

The early twenty-first century brought rapid advances in technology, communication, and access to information. In response, AASL introduced the Standards for the 21st-Century Learner in 2007, placing student learning, inquiry, and ethical participation in digital environments at the center of school library practice.

These standards emphasized critical thinking, creativity, collaboration, and responsible participation in the information environment. Learners were encouraged not only to find information, but also to evaluate, create, and share knowledge responsibly.

In 2009, Empowering Learners: Guidelines for School Library Programs provided practical guidance for implementing learner-centered school libraries and reinforced the school librarian’s leadership role in teaching information literacy, digital citizenship, and inquiry-based learning.

Together, these works helped establish a vision of school libraries as dynamic learning environments that empower learners to become thoughtful, responsible participants in an increasingly complex information landscape.

Key Milestones

2007 — Standards for the 21st-Century Learner
Introduced a learner-centered framework focused on inquiry, critical thinking, and responsible participation.

2009 — Standards for the 21st-Century Learner in Action
Provided benchmarks and practical examples to support implementation and help school librarians align their work with broader educational expectations for accountability and assessment.

2009 — Empowering Learners: Guidelines for School Library Programs
Offered guidance for implementing learner-focused school library programs.

2010–2016 — Continued professional development and implementation
School librarians applied these standards through instruction, program development, and collaboration with other educators.

2017–2025 | THE WAY FORWARD

In 2017, AASL introduced the National School Library Standards for Learners, School Librarians, and School Libraries, creating an integrated framework that connected learning, practice, and programs for the first time.

Representing a major evolution in the development of standards, this framework reflected broader shifts toward competency-based learning through six Shared Foundations: Inquire, Include, Collaborate, Curate, Explore, and Engage.

Following publication, AASL supported implementation through professional learning, conferences, research, and partnerships that helped librarians integrate the standards into teaching, curriculum design, and program development.

The 2025 second edition builds on this framework while expanding contextual guidance related to the evolving roles of school librarians, information literacies, integration with content areas, personalized learning, measuring growth, and continued advocacy for strong school libraries.

Key Milestones

2017 — National School Library Standards (1st Edition)
Introduced an integrated framework connecting learners, school librarians, and school libraries through six Shared Foundations.

2018–2019 — Early implementation and professional development
Resources and training supported implementation of the new standards nationwide.

2020–2024 — Evolving educational landscape
Changes in technology, digital learning, and educational priorities informed ongoing discussion and refinement.

2025 — National School Library Standards (2nd Edition)
Expanded the contextual guidance surrounding the standards while maintaining the core framework.