Google Slides is Google's cloud-based presentation software, part of the Google Workspace suite. Unlike traditional desktop applications, Slides was designed from the ground up for real-time collaboration, automatic version control, and cross-device access. The platform runs entirely in a web browser but offers surprisingly powerful design tools—including a theme builder (formerly master slides), extensive animation options, and seamless integration with other Google services. One key mental model: everything is immediately saved and shareable, so you never "lose work" and can invite collaborators with a single click, fundamentally changing how teams build presentations together.