This document summarizes a webinar about how engineers and libraries can collaborate to provide educational opportunities for youth. The webinar included an introduction from representatives of the Space Science Institute and AECOM engineering firm. It covered Project BUILD, a program pairing libraries and engineers to engage kids in STEM. Hands-on activities were demonstrated, like a water filtration activity and a role-playing game about pollution. Tips were shared for effective library-engineer partnerships, including defining roles, joint planning, and focusing on experiential learning over products or answers. The goal is sparking interest in STEM careers through challenge-based learning and partnerships between libraries and engineering volunteers.