Systems thinking is a practical approach for understanding and addressing complex, interconnected problems. By focusing on how elements within a system interact, it helps people see the bigger picture, identify leverage points for meaningful change, and develop more effective responses. Rather than focusing on isolated parts, it emphasises relationships, diverse perspectives, and setting clear boundaries to help navigate complexity.
This approach is particularly valuable in multi-actor settings, where different interests, knowledge systems, and experiences must come together. It supports work on wicked problems that no single group or discipline can solve alone. IIn practice, systems thinking often sits alongside approaches that help people work with uncertainty, adaptation, and change over time. See the complexity-aware resources and guides page for a complementary set of materials focused on working with emergence in practice.
For a practitioner perspective on how systems and complexity approaches interact, see the post Working between systems and complexity: a practitioner’s guide, which explores how structure and emergence can support learning and adaptation in real-world initiatives. For practical techniques used to apply these ideas, see the page on systems thinking methods and tools, which introduces mapping techniques, causal loop diagrams, and other analytical approaches.
You can begin with the post Systems thinking and systemic design: working with complexity, which provides a practical framework for applying these principles in collaborative settings. The resources below then offer guides, frameworks, and tools for taking this further in practice.
Key resources on systems thinking
Systems thinking and systemic design: working with complexity
This 2025 post by Will Allen explores how systems thinking and systemic design help navigate complex challenges such as climate change, biodiversity loss, and social inequality. It highlights the importance of recognising interconnections, identifying leverage points, and using adaptive approaches to develop sustainable solutions. The post also introduces co-design as a key element in systemic design, ensuring that solutions are shaped collaboratively with those affected.
Systems Thinking and Practice: A Guide to Concepts, Principles and Tools
This 2023 guide by Jim Woodhill and Juliet Millican provides a practical introduction to systems thinking, exploring its theoretical foundations and tools. It highlights the need to shift from linear, reductionist approaches to more adaptive and systemic ways of working, offering insights into leadership and governance for addressing root causes of complex issues. It also offers links to additional resources and tools on systems thinking.
Developing a systems thinking guide
This 2023 guide by Michelle Irving et al. helps researchers and policymakers incorporate systems thinking into planning and interventions. Organised into four categories—system goals, beliefs, relationships, and resources—it offers a framework to drive systemic change and improve the impact of research and policy.
Working with Change: Systems approaches to public sector challenges
This 2017 OECD report explores the application of systems thinking in public governance. It offers a set of tactics for systemic change—such as connecting, framing, and prototyping—and includes case studies that demonstrate the practical application of these approaches in tackling public sector challenges.
Leverage points: Places to intervene in a system
Donella Meadows’ classic article identifies nine key leverage points for driving meaningful change in systems, offering timeless insights into how and where to intervene effectively.
Applications in sustainability and public policy
Systems Thinking: An introduction
This 2015 brief by Kimberly Bowman et al. introduces systems thinking in the context of international development. It emphasises designing adaptable programmes that account for changing contexts and engaging diverse stakeholders to create transformational solutions.
No systems transformation without systems literacy: Insights from CGIAR
This open-access paper by Hanna Ewell and colleagues (2026) examines how CGIAR has engaged with systems thinking over five decades of agricultural research for development. Drawing on interviews and institutional history, it argues that systems transformation requires systems literacy – not just tools, but the capacity to select and apply different systems approaches appropriately. The paper highlights barriers such as short funding cycles, linear impact metrics, and siloed incentives, and proposes strengthening systems knowledge, governance, and investment to support long-term change.
Systems thinking: Unlocking the Sustainable Development Goals
In this 2016 post, Stephanie Draper argues that achieving the SDGs requires a systemic approach. She outlines three levels of organisational action: aligning with others’ efforts, understanding goal interconnections, and delivering initiatives that model sustainability.
Tackling wicked problems : A public policy perspective
This 2012 paper from the Australian Public Service Commission examines the characteristics of wicked problems and offers insights into developing effective strategies for addressing them. It highlights the need for adaptive and collaborative approaches in policymaking.
Introductory system concepts and tools
Introduction to systems thinking
Daniel Kim’s resource provides essential tools and concepts for applying systems thinking in organisations. It is designed to help practitioners visualise and address the complexity of dynamic systems. You can download the full introduction which aims to give you the language and tools you need to start applying systems thinking principles and practices in your own organization.
Learn about systems thinking
The Australian Partnership Prevention Centre offers a curated collection of systems thinking resources for beginners and experienced practitioners, focusing on applying these ideas in research and practice.
Systems archetypes
Daniel Kim’s guide introduces nine common systems archetypes, which reveal recurring patterns of system behaviour. These archetypes serve as diagnostic tools for understanding system dynamics, complemented by Leyla Acaroglu’s 2017 reflections on positive social archetypes in systems dynamics. (See also the ISEE guide – Applying Systems Thinking and Common Archetypes to Organizational Issues).
Systems thinking: a means to understand our complex world
Linda Booth Sweeney introduces key systems concepts, including feedback loops, temporal delays, and system behaviour, offering practical tools for understanding complexity.
Courses in systems thinking
Open University – Systems thinking (free courses)
The Open University provides free courses exploring systems thinking, including Systems Thinking in Practice and Systems Diagramming. Other courses focus on specific areas like environmental management, sustainability, and IT systems.
School of System Change
The School of System Change offers learning programmes for people driving change in complex systems. Their courses emphasise real-world application, blending systems thinking, design, and facilitation practices. Options range from introductory tasters to longer programmes like Basecamp, designed for practitioners working in sustainability, climate, public health, and equity.
Quick answers to common questions
What is systems thinking?
Systems thinking is an approach to problem-solving that looks at relationships, feedback loops, and patterns across a whole system rather than isolated parts. By seeing how elements interact, it helps avoid quick fixes that shift problems elsewhere and instead identifies leverage points for more lasting, meaningful change.
Why use systems thinking in practice?
In complex settings, systems thinking supports better decisions by mapping stakeholders, drivers, and unintended effects. It helps teams align goals, choose interventions with greatest leverage, and adapt as conditions evolve. By encouraging reflection and iterative learning, it provides a practical way to manage uncertainty and sustain progress over time.
More information on tools and methodologies to implement systems thinking can be found through the linked LfS pages on systemic design, systems thinking tools and conceptual modelling. You may also be interested in related pages on supporting constructive practice change, and strategic planning, which explore how systems thinking can inform real-world decision making.
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