Master the Dynamics of RAG! 'Practical Context Engineering: A Hands-On Guide to Graph DB and RAG' Released as June's New Title in the 'Fountain of Technology' Series

Impress Inc., a company within the Impress Group that operates IT-related media businesses (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Takashi Takahashi), has published 'Practical Context Engineering: A Hands-On Guide to Graph DB and RAG' (Author: Hidenobu Ishikawa) through Impress NextPublishing.

The 'Fountain of Technology' series, which disseminates cutting-edge knowledge, aims to contribute to the popularization and development of technical doujin (self-published technical books) by publishing commercial books based on doujin titles distributed at events such as 'Tech Book Fes' and 'Technical Book Convention,' as well as study groups and lightning talk events.

'Practical Context Engineering'

https://nextpublishing.jp/isbn/9784295605027

Author: Hidenobu Ishikawa

Suggested Retail Price: E-book Edition 1,800 JPY (excluding tax) / Print Edition 2,000 JPY (excluding tax)

E-book Format: EPUB3

Print Edition Specifications: B5 / Full Color / 106 pages

ISBN: 978-4-295-60502-7

Publisher: Impress NextPublishing

<<Purpose and Content Overview>>

This book is a technical guide that explains practical methods for context engineering in generative AI and implementation examples of declarative programming-based RAG using the latest information. Recently, a phenomenon known as 'context rot' has been recognized, where the reasoning capability of LLMs deteriorates as the density of information given to them increases and the context window becomes excessively large. This book details the design philosophy of RLM as a solution to this issue. Unlike traditional static approaches, RLM is designed not to input all data directly into the prompt, but to treat context as external data, allowing the LLM to dynamically explore and verify only the necessary information through code execution and recursive calls. The book also introduces practical implementation methods of RAG using Graph DB and concrete application examples of services used in RAG, supported by hands-on code, providing developers with specific guidance to solve complex data integration challenges in system design. Furthermore, it discusses methods for tracing LLM behavior during response generation in RAG, offering a comprehensive resource that supports the development of reliable AI applications through visualization and validation of the often-black-box generative process.

(Impress NextPublishing inherits the digital-first publishing model developed by Impress R&D, enabling a wide range of publishing projects to be realized quickly and sustainably through e-books and on-demand printing.)

<<Table of Contents>>

Introduction

Chapter 1: About the Code Introduced in This Book

Chapter 2: Services Related to RAG

Chapter 3: What is Graph DB?

Chapter 4: Context Engineering

Chapter 5: Practical Context Engineering: DSPy

Chapter 6: DSPy Demonstration and Peripheral Tools

Author Biography and Afterword

<<Author Biography>>

Hidenobu Ishikawa

Career path: Infrastructure Engineer → IT Systems and Infrastructure Manager ⇨ Data Analytics Platform Operations, PM, Consultant. While having extensive experience in staffing (SES), he also served as IT and infrastructure lead at a startup. His project management experience mainly involves system migrations. He enjoys installing and experimenting with OSS at home. Recently, he finds generative AI × Graph DB particularly interesting and is exploring and sharing what can be achieved with these technologies.

<<Sales Outlets>>

E-books: Amazon Kindle Store, Rakuten Kobo eBook Store, Apple Books, Kinokuniya Book Store Kinoppy, Google Play Store, honto eBook Store, Sony Reader Store, BookLive!, BOOK☆WALKER, BOOK TECH

Print Books: Amazon.co.jp

※ Sales at each store will begin as preparations are completed.

※ Available for order through general bookstores nationwide.

<<About the 'Fountain of Technology' Series>>

Launched in 2017, the 'Fountain of Technology' series is a technical book series based on technical doujin—knowledge outputs by engineers. Leveraging NextPublishing's rapid editing and production process and print-on-demand (POD) manufacturing that enables printing from a single copy, the series features a sustainable publishing model that keeps pace with technological changes while eliminating returns and stockouts. The series aims to provide more people with access to the 'crystallized knowledge' of engineers through technical doujin.

[Impress Inc.] https://www.impress.co.jp/

A comprehensive business operator of IT-related publishing and digital media, Impress Inc. manages popular series such as 'Can Do' (over 80 million cumulative copies), magazines like 'Digital Camera Magazine,' consumer-facing digital news services including 'Impress Watch Series'—one of Japan's largest IT media platforms—and enterprise IT media such as 'IT Leaders.' The company broadly operates IT publishing, digital media, and service businesses.

[Impress Group] https://www.impressholdings.com/

A media group with Impress Holdings, Inc. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Yukiko Tsukamoto) as its holding company. The group operates specialized media, services, and solutions centered on key themes such as 'IT,' 'music,' 'design,' 'mountaineering and nature,' 'aviation and railways,' 'mobile services,' and 'academic and engineering sciences.' It also develops and operates content business platforms.

[NextPublishing]

NextPublishing is the name of a digital publishing platform (or methodology) developed by Impress R&D. It solves traditional publishing challenges such as simultaneous production of e-books and print books and eliminating stockouts via print-on-demand (POD). This enables economically viable publication of small-volume, diverse-title books that are difficult under traditional models, aiming to circulate diverse knowledge from talented individuals and organizations.

[Inquiries]

Impress Inc.: PubX Department

E-mail: np-info@impress.co.jp