Agito Inc. of Chiyoda-ku, Tokyo, led by CEO Yasutatsu Takai, has released a free eBook for advertising operators and marketing professionals titled “Introduction to AI Use for Advertising Professionals: Learn the Best AI Methods by Purpose and Tool.” As generative AI evolves rapidly, interest in using AI in advertising operations is growing quickly. However, many companies still face challenges when trying to implement it. They may not know which tool best fits their work because there are too many AI tools, may not have a clear framework for using different AI tools across tasks such as automated analysis, ad report creation, and creative production, may lack systematic learning materials, or may want practical AI methods that can be used even without engineers. To address the common concern that AI seems useful for improving efficiency but the starting point is unclear, Agito created and released a practical guide that organizes optimal AI use from two perspectives: by purpose, including analysis, reporting, creative work, and daily checks; and by tool, including Claude Code, Claude Cowork, NotebookLM, Gemini, and BigQuery. The eBook covers three main areas. First, it explains the overall picture of advertising tasks that can be made more efficient with AI, including analysis, report creation, creative production, and daily checks. It also introduces five AI tools that can be used in advertising operations, with a comparison table showing their features, pricing, and suitable users. Second, it presents AI use cases by purpose across four work areas: analytical comments, analysis, and campaign proposals; report and document creation; creative production; and daily operational checks and alerts. For each area, the guide presents both the best and most advanced method and an easier second-best method, along with prompt examples and output images for immediate practical use. Third, it explains the data infrastructure that supports all AI use, describing why this prere