explaining.software

What It Is

Explaining Software Design is an English-language newsletter by Zach Tellman, published via Buttondown, focused on software design. The page explains that the author has been writing a book about software design over the past few years, and will share excerpts from the unfinished manuscript along with related thoughts that did not make it into the book. As such, it is closer to an ongoing serialized column of technical ideas than a structured course in the conventional sense.

Core Content and Format

Based on the information available, the core idea is to understand software development as a repeated act of “explanation”: explaining what software is, and what we want it to become. Topics include practical definitions of simplicity and complexity, naming and metaphor, the history of software design, and discussions of language models as software developers or as a reverse analogy. The format is not live classes, recorded video, or 1-on-1 instruction, but text-based reading delivered through an email subscription, making it more suitable for self-directed learners.

Pricing and Certificates

The page only provides an email subscription entry point. It does not disclose whether the newsletter is paid, subscription pricing, payment methods, refund policies, or paid subscriber benefits. It also provides no information about accreditation, certificates, assignment review, or proof of learning. Therefore, if users need measurable learning outcomes, certificate-backed credentials, or career-training deliverables, this product is not a good match.

Pros and Cons

Its strengths are a focused and fairly in-depth topic area, especially for readers interested in the language of software design, complexity, and engineering communication. Since the author is drawing from a book manuscript, the content may have strong reflective depth and continuity. The downside is that it is not very course-like: there is no clear syllabus, learning path, update schedule, interaction mechanism, or service support. The content is also in English, which creates a reading barrier for Chinese readers.

Who It’s For and Access from China

It is best suited to engineers, architects, or technical managers with some software development experience who want to improve their design thinking and technical communication skills. It is less suitable for complete beginners in programming, or for people who want to quickly learn practical tool skills through video courses. Access from China cannot be determined from the page content alone; subscription depends on email and the Buttondown page, so network access, email deliverability, and payment availability would all need to be tested in practice. Alternatives include software architecture books, technical blogs, Coursera/Udemy software design courses, and Chinese-language technical columns.