This document offers practical and concise, step-by-step guidance on designing Long-Term Low Emission Development Strategies (LT-LEDS). LT-LEDS play a crucial role in mitigating and adapting to climate change while aligning with development objectives. The Paris Agreement calls upon its 195 signatory countries to strive for limiting the global temperature increase to 1.5°C. Achieving this goal hinges on the rapid reduction of human-induced greenhouse gas emissions (GHGs) in the short term