DeepSeek AI in Practice: A Hands-On Guide to Prompting, Research, Writing, Coding, Automation, and Agents with V4

Most DeepSeek books explain what it is. This book shows you what to build-and how to verify that it works. DeepSeek AI in Practice is a project-based handbook for professionals, freelancers, students, and light technical users who want real workflows-not another pile of one-off prompts or a recap of last year's model news. You'll learn a reusable method for getting useful results from DeepSeek V4-class models: how to specify the task, supply the right context, control reasoning, and check outputs before you ship them. Volatile details (UI labels, prices, model strings) are treated as configuration-so the core skills still apply when products change. WHAT YOU'LL BUILD - A durable prompt system (GCRVO) with house rules, checklists, and versioned templates - Everyday workflows for writing, research, business operations, and lightweight data analysis - Safer coding habits-including how to catch package-name hallucinations and unrun "analysis" - A practical API client pattern with logging, retries, and structured JSON output - Five mini-applications you can adapt immediately - A private knowledge assistant using retrieval-augmented generation (RAG) - An agent pattern with planning, tools, human approval gates, and kill switches - A clear decision framework for local vs cloud vs hybrid deployment >INSIDE THE BOOK - Part I - Foundations: where DeepSeek fits, safe setup, privacy, and verification - Part II - Prompting as task design: GCRVO, controlled reasoning, reusable systems - Part III - Everyday work: email, research evidence tables, SOPs, decision memos, CSV checks - Part IV - Coding & automation: debugging loops, API usage, five practical apps >Includes print-ready workflow diagrams for the build-verify method, GCRVO, RAG, agent gates, app architecture, and local/cloud decisions-designed for clarity on a 5.5" × 8.5" page, not disposable screenshots. WHO THIS BOOK IS FOR >WHO THIS BOOK IS NOT FOR >HOW TO USE IT >Independent educational guide. Not affiliated with or endorsed by DeepSeek or any other company mentioned.