[Reprinted Before Release!] "Practical Introduction to Claude Code to Boost Development Efficiency" Hits #1 on Amazon, Poised to Solve IT Industry Challenges

Mynavi Publishing Corporation (Headquarters: Chiyoda-ku, Tokyo; President & CEO: Teruki Kakutake) will release "Practical Introduction to Claude Code to Boost Development Efficiency!" on Tuesday, May 19, 2026. Despite being before its release, a reprint has been decided, and it has achieved the number one spot on Amazon's rankings (*1). "Claude Code," which is rapidly being adopted by companies and individuals, is changing the norms of the development floor. This book is a guide for putting such a tool to practical use. *1...In the "Software Development & Languages" book category (as of May 15, 2026). Will "Claude Code" change the norms of the development floor? Generative AI has evolved from a tool that generates text to an "autonomous agent" that writes code, runs tests, and proposes designs. At the forefront is "Claude Code," an AI coding agent developed by Anthropic and announced in 2025. For years, Japan's IT industry has faced structural issues of severe labor shortages and stagnant development productivity. The Ministry of Economy, Trade and Industry estimates a shortage of up to 790,000 IT personnel by 2030 (*2), and the entire industry is seeking an answer to how to deliver high-quality software with limited engineering resources. AI coding agents are now poised to change the norms of the development floor as a realistic breakthrough for these challenges. From a "conversational AI" to an "AI that actually works". Unlike traditional AI assistants that only returned answers in a chat format, "Claude Code" takes a completely different approach. It can take a task, read the entire codebase, and autonomously edit, execute, and verify across multiple files until completion. What's more remarkable is its extensibility. It can connect with external tools like Google Drive, Slack, GitHub, and Jira for end-to-end execution, from automatic PR creation to ticket updates. Multiple AI agents can also form a team to work collaboratively. It can also be operated from smartphones or Slack, enabling development from anywhere. Furthermore, "Claude Code" does not use user data for model training and is designed to require human approval for significant changes, making it safe for confidential business environments. Mastering Claude Code's unique features. The number of engineers paying attention to Claude Code is rapidly increasing. However, in practice, many voices say, "I got stuck at installation," "I'm only using some of its features," or "We introduced it, but it didn't stick in our workflow." This book teaches you how to delegate various app development tasks to Claude Code, from basic operations to design, development, and testing, through hands-on learning. It's the perfect book for those who knew about Claude Code but hadn't tried it, those who tried it without success and want to learn how to use it in practice, or those who want to learn more useful tricks.