June 15-18, 2026

Library Evidence Synthesis Services Symposium (LESSS)

A four-day, free, virtual professional development event for information professionals supporting evidence synthesis services in libraries and other information workplaces

Looking for LESSS 2026?

View session recordings for LESSS 2026 and 2024 on the LESSS YouTube channel.

2026 archived materials coming soon!

2024 archived materials available in the LESSS 2025 Open Science Framework (OSF) repository

Recordings and archived materials are shared when author permissions were granted.

LESSS 2026 Schedule & Program!

Check out the LESSS 2026 schedule and program

Check out the Opening Remarks & Reminders slides

Check out the Closing Remarks slides

LESSS 2026 Keynote Speaker

Matthew Kibbee, PhD,

Evidence Synthesis Coordinator

"Collaborating with Chaos: Steering an Evidence Synthesis Service through Uncertain Times"

LESSS 2026 Theme

Building Capacity for Sustainable, Innovative Evidence Synthesis Services

Learn more about the LESSS 2026 theme.

2026 Submission Types

Presentations

ES practitioners of all levels sharing their service-supporting successes, challenges, and innovations

Panel Discussions

Multiple speakers sharing knowledge and ES service practices around a set theme

Lightning talks

Fast-paced, condensed ideas, experiences, and insights to maximize diverse perspectives and information sharing

Roundtables

Active, engaging facilitated discussions for community members to share collective knowledge