According to @godofprompt, the newly released Gemini Mastery Guide provides practical, in-depth resources for maximizing Google Gemini 3's capabilities. The guide includes 30 prompt engineering principles tailored to Gemini, detailed workflows for Nano Banana Pro image generation, a Veo 3 video generation walkthrough, and more than 10 custom Gems with ready-to-use prompts. Additionally, it offers a full prompt engineering mini-course and specific breakdowns on integrating Gemini into Google Workspace. These insights are based on extensive hands-on testing of Gemini 3, offering actionable strategies for AI professionals aiming to boost workflow efficiency and unlock business opportunities in generative AI solutions. (Source: @godofprompt, Twitter, Jan 22, 2026)