Group synthesis projects use and combine data from multiple sites, times, or approaches. They also build professional networks, expand your scientific perspective, and produce impactful science. But doing them well requires a particular combination of skills, including both technical and interpersonal skills. In the Fall of 2024, the LTER Network Office will begin offering a course for 27 LTER early career researchers that will include in-person and virtual components, a dozen instructional modules in key synthesis skills, and a small-group synthesis project. Join the March Community Call to learn about the course plan and opportunities to take part as a project science mentor or a participant.