EC担当者におすすめの本6選|フェーズ別・課題別に紹介

6 Recommended Books for EC Managers | Organized by Phase and Challenge

Tsun ライターチーム

Note: This article introduces Japanese-language books for e-commerce professionals. These books are written in Japanese and may not be available or relevant outside Japan. The tax filing book covers procedures and the invoice system specific to Japan.

When you're launching an e-commerce site, or when sales have stalled, it's often easier to make progress by organizing the big picture and your overall approach, rather than chasing fragmented tips. This is especially true for people running an EC operation with a small team, or who are handling it alongside other duties — organizing the big picture becomes even more important. Books can be a useful foundation for that kind of work.

At the same time, e-commerce and tool specifications and customer-acquisition methods change quickly, so it's assumed you'll check official documentation or web articles for the latest information. It's realistic to treat books mainly as a way to understand the underlying mechanisms and frameworks for decision-making.

In this article, we introduce 6 books for EC managers, organized by phase and by challenge. We've arranged them so you can choose based on your own challenges, covering everything from launch, to Amazon, to business strategy, to finance.

Points to Keep in Mind When Choosing a Book for EC Operators

1. Supplement the freshness of information with "books + the web"

The world of e-commerce and digital marketing changes quickly, and it's not uncommon for a UI or specification to have already changed by the time a book is published.

In particular, the following tend to show a gap the more years have passed since publication:

  • Screenshots of admin dashboards
  • Ad management screens
  • Specifications of various tools

For that reason, we recommend choosing books to learn the basic concepts, thought process, and big picture, on the assumption that you'll supplement the latest specifications and case studies through official documentation and each company's blog or social media such as X.

2. Clarify your own level and objective

Even among books about e-commerce, the content varies greatly between an introductory book for people who are about to start an online shop, a book for people who are already operating and want to grow customer acquisition, LTV, and CRM, and specialized books that dig into a specific area such as cross-border e-commerce or D2C.

  • First, decide roughly whether you want to "get the launch and basics right"
  • Or whether you want to "exceed your monthly sales target"
  • Or whether you want to think about "the next growth engine (cross-border, D2C, business transformation)"

If you roughly determine your own phase before choosing a book, it becomes easier to avoid the wasted time of finishing a book and still not being able to decide what to actually do next.

3. Also check whether it's marketplace-centered or owned-site-centered

There is overlap, but also divergence, between know-how premised on marketplaces such as Rakuten Ichiba, Amazon, and Yahoo! Shopping, and know-how premised on an owned e-commerce site using something like Shopify or a cart ASP.

  • If marketplace operations are your main battlefield: look at official Rakuten/marketplace books, or books where reviews frequently mention "Rakuten manager" or "EC marketplace manager"
  • If you're premised on an owned site or multi-channel: look at books that cover multiple carts and multiple channels

We recommend also checking whether a book contains a lot of case studies and know-how close to your own main battlefield.

Quick-Reference Table of Recommended EC Books

Purpose / Phase Book
Want a rough understanding of the big picture of e-commerce The Manga Guide to E-Commerce Business
Want to revisit your sales and operations structure Selling Well! E-Commerce Business Management and Operations
Want to drive results with a small team The Ultimate E-Commerce Operations Method for Reaching ¥1 Million in Monthly Sales
Want to grow Amazon as your main sales channel The Definitive Guide to the Amazon Import Business You Can Use for Life
Want to understand the e-commerce and large-enterprise model in the AI era AI-Ready Commerce
Want to master the tax and accounting basics needed to run an EC business An Introduction to Tax Filing for Online Shop Owners

From here, we'll introduce each book in more detail.

Recommended for People Who Want to Grasp the Big Picture of E-Commerce

This is for people getting involved with e-commerce for the first time, or who want to organize their knowledge once. We've chosen a book that gives a bird's-eye view of terminology, industry structure, and the overall flow of e-commerce business.

The Manga Guide to E-Commerce Business

"The Manga Guide to E-Commerce Business" is an introductory book that lets you understand the mechanics of e-commerce and the overall flow of the business through a manga-style story. Elements like sourcing, customer acquisition, logistics, and payment are depicted following the flow of an actual business.

It's an easy book to use not only for the EC manager themselves, but also as a single volume to help surrounding departments — such as sales and administration — understand e-commerce.

Recommended for People Who Want to Solidify the Foundation of Their EC Operations

This is for the stage where you need to organize your approach to operations, along with things like your sales structure, division of roles, and KPIs, as a business. It's suited to the phase of moving away from person-dependent operations and toward EC operations that can be reproduced.

Selling Well! E-Commerce Business Management and Operations

"Selling Well! E-Commerce Business Management and Operations" is a book that organizes a perspective on treating an online shop not as "a set of tasks" but as "a business." It carefully explains the points of discussion that sit between the field and management — sales structure, division of roles, and KPI design.

Rather than a collection of practical know-how, this is content suited to building the foundation for running e-commerce over the long term.

Recommended for People Who Want to Drive Results with a Small Team

This is for EC operators who are constrained on people and time, and who are wrestling with how to grow both sales and operations. It's suited to those who have moved past the launch period, have an increasing amount to do, and want to organize how they prioritize initiatives and think about running operations.

The Ultimate E-Commerce Operations Method for Reaching ¥1 Million in Monthly Sales

"The Ultimate E-Commerce Operations Method for Reaching ¥1 Million in Monthly Sales" is a book for operators running e-commerce with a small team to organize what they should focus on next. Rather than blindly piling on initiatives like product design, customer acquisition, and improving the purchase flow, it explains, in order, "what you should do right now."

It's suited to small- and medium-sized e-commerce businesses that want to move away from intuition-based operations and reassess their e-commerce using numbers and structure.

Recommended for People Who Want to Grow Amazon as a Sales Channel

This is for people who want to understand the mechanics unique to Amazon, which operates on a different premise than an owned e-commerce site. We've chosen a book that's useful whether you're approaching it as a side business or as a full business.

The Definitive Guide to the Amazon Import Business You Can Use for Life

"The Definitive Guide to the Amazon Import Business You Can Use for Life" is a book where you can systematically learn the way of thinking behind an e-commerce business built around Amazon as its main battlefield. It covers everything from product research to selling and risk management, explained against the premises unique to Amazon.

This is suited to people already working on Amazon sales, or those who want to understand the mechanics of marketplace-type e-commerce.

Recommended for People Who Want to Understand the AI-Era, Large-Enterprise E-Commerce Model

This is for people who want to think about business models and organizational design. It's suited to those who want to reconsider e-commerce from the perspective of using AI or a mid-to-long-term view.

AI-Ready Commerce

"AI-Ready Commerce" is a book that organizes the changes in commerce businesses in the AI era, mainly from a large-enterprise perspective. Rather than individual tactics, it focuses on redesigning organizations, data, and business models.

This content is aimed less at people looking for on-the-ground know-how, and more at planning and executive-level readers who want to think about the future shape of a business as a whole, including e-commerce. If you're looking for tactics you can use immediately in the field, it may feel somewhat abstract.

Recommended for People Who Want to Understand E-Commerce Tax and Accounting

This is an essential introductory category on tax and accounting for EC businesses whose operations have started to gain traction. We've selected it with the goal of grasping the overall shape of the system.

An Introduction to Tax Filing for Online Shop Owners

"An Introduction to Tax Filing for Online Shop Owners" is a practically oriented book that organizes the tax and accounting basics needed to run an EC business. It covers everything from the procedures at the time of starting your business, to day-to-day bookkeeping, tax filing, and Japan's invoice system.

Even for an EC manager who isn't comfortable with numbers or systems, it's structured so the minimum points you need to cover are easy to grasp.

An Introduction to Tax Filing for Online Shop Owners: From Starting an Online Shop to Bookkeeping, Closing the Books, Tax Savings, and Invoice System Measures

Check Out This Book

View on Amazon

Choosing an E-Commerce Book Is Less Likely to Fail If You Start From "Your Current Challenge"

Drawing on Amazon ratings, rankings, and review content, we introduced recommended books for EC managers organized by phase and by objective.

There are countless e-commerce-related books, but what matters more than whether a book has high ratings is whether it fits your own company's current phase and challenges. Because e-commerce and marketing move quickly, it's a good idea to check concrete specifications and methods against primary sources on the web, while using books for the purpose of organizing the big picture and your overall approach.

It's easier to make use of a book if you think of it less as a way to get "the answer," and more as a tool for building your own "framework for decision-making."

👆️目次はShopifyアプリ「RuffRuff 目次作成」を利用

👆️Table of contents by the Shopify app RuffRuff Table of Contents

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