The Architect’s Paradox
Barry O’Reilly
An introduction to philosophy for software engineers and architects that will help them understand their design process. This book helps to answer the question “Why are we like this?”.
Featured Leanpub Book
Finding Success (and Failure) in Haskell
Fall in love with applicative functors
Grab your compiler and follow along as the authors develop and gradually refine a short Haskell program. This extremely approachable guide explains topics like case expressions, sum and product types, type constructors, typeclasses, and newtype coercion as they are motivated by the example code, with exercises to reinforce your understanding.
Learn MoreGrab your compiler and follow along as the authors develop and gradually refine a short Haskell program. This extremely approachable guide explains topics like case expressions, sum and product types, type constructors, typeclasses, and newtype coercion as they are motivated by the example code, with exercises to reinforce your understanding.
Learn MoreLeanpub: Publish Early, Publish Often
Imagine a world where authors can earn money writing books...
You can use Leanpub to write, publish and sell an ebook or online course.
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
Authors have earned$14,221,928writing, publishing and selling on Leanpub.
You can either write your book in Markdown or you can upload PDF or EPUB files to sell in our store.
If you are writing in Markdown, you can use our simple in-browser text editor, or you can write on your computer and sync with GitHub or Dropbox. Either way, you can publish your Leanpub ebook with one click. You can publish your book while you're writing it, or wait until it is done: it's up to you.
You can create a Leanpub course in Markdown as well. Leanpub courses are like Leanpub books, but with quizzes and exercises that learners complete on the Leanpub website to earn a certificate of completion. To learn more about how to create a Leanpub course, you can watch this video on YouTube which shows the entire process from signup to publish!
Featured Frontmatter Podcast Interview
Special Guest Dan Holloway, Looking Back on the Book Industry in 2024
Special Guest Dan Holloway - In this episode of the Leanpub podcast, Dan Holloway, host of the Self-Publishing News podcast, joins Len Epp for Leanpub’s year-end review of 2024 book industry trends, including AI’s role in publishing, evolving author income patterns, and key controversies like WordPress disputes and the Internet Archive case. Holloway also shares insights on cozy literature’s rise and predictions for 2025.
Special Guest Dan Holloway - In this episode of the Leanpub podcast, Dan Holloway, host of the Self-Publishing News podcast, joins Len Epp for Leanpub’s year-end review of 2024 book industry trends, including AI’s role in publishing, evolving author income patterns, and key controversies like WordPress disputes and the Internet Archive case. Holloway also shares insights on cozy literature’s rise and predictions for 2025.
Top Books
- #1
- #2
The Hundred-Page Language Models Book
Andriy BurkovMaster language models through mathematics, illustrations, and code―and build your own from scratch!
- #3
Pragmatic Type-Level Design
Alexander GraninAn approachable, well-written, practice-oriented, academism-free guide into programming with types. How to build useful real-world type-level programs with low complexity and low risks.
- #4
The Object Oriented Way
Christopher Okhravi (PhD)How do we solve problems using objects?
That question is the north star of this book. While we happen use C# for all examples in this book, that language is merely a means and not an end. The purpose of this book is to teach the *fundamental ideas in contemporary object oriented programming*.
Who is this book for?
Whether you are a complete novice or a seasoned coder looking to grow, this book is your roadmap to mastering contemporary object orientation. From simple topics like syntax and types all the way to advanced concepts like design patterns and variance.
Why objects?
I believe that the functional way is superior to the object oriented way. So why study objects? Before we criticise the other side, we must understand their arguments better than they do themselves. This book is my attempt at steel-manning the object oriented way, once and for all.
- #5
Residues: Time, Change, and Uncertainty in Software Architecture.
Barry M O’ReillyResiduality Theory is a new way to think about the design of software systems that explains why we experience design the way we do, why certain things seem to work only sporadically, and why certain architects get it right so often regardless of which tools they use. A new, scientific approach is defined that fuses Software Engineering, Complexity Science, and Philosophy to produce an entirely new way to think about how to design software. The result is a theoretical base that allows architecture to finally become its own discipline.
- #6
Generative AI in a Nutshell
Henrik KnibergThis is a fast-paced, practical, and visual guide to the strange new world of Generative AI. It is like an extended version of Henrik's viral video with the same name.
Print version: Paperback & Hardcover are available on Amazon. Use your own country's amazon site (ex: Amazon.se for Sweden) to minimize shipping time and cost.
- #7
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
- #8
The Hundred-Page Machine Learning Book
Andriy BurkovEverything you really need to know in Machine Learning in a hundred pages.
- #9
Understanding Eventsourcing
Martin DilgerThe first book to combine Eventmodeling & Eventsourcing to plan software systems of any size and complexity.
NEW CHAPTER AVAILABLE - Eventsourcing & User Interfaces!
- #10
Platform Strategy
Gregor HohpeDeveloper platforms promise to rewrite the laws of IT physics: they boost innovation through standards; they speed up development while assuring compliance; and they reduce cognitive load without restricting choice. Building such an in-house platform, or even deploying one, is far from easy, though. This book condenses a decade of building and rolling out platforms into practical advice for platform teams and users.
Featured Bundle
Software Architecture
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before...
Learn More"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before...
Learn MoreTop Bundles
- #1
Residues and The Philosophy of Software Architecture
2 Books
This bundle includes the books “Residues: Time, Change and Uncertainty in Software Architecture” and “The Architect’s Paradox: Uncertainty and the Philosophy of Software Architecture” by Barry M O’Reilly. The books complement each other, with Residues giving a practical description of how to apply residuality theory and The Architect’s Paradox... - #2
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #3
Linux Debugging
3 Books
This comprehensive training for software developers, site reliability and performance engineers teaches postmortem, live local and remote debugging techniques and features:debuggers and tools: WinDbg, GDB, LLDB, crash, rr, KDB, KGDBx64 and AArch643 training courses85 hands-on exercises300 slides with comments1,200 pages of training books - #5
The 'Everything EA' bundle
39 Books
The ‘Everything EA’ bundle: A comprehensive library of articles about enterprise architecture to help you navigate your way through change. Want to know more about enterprise architecture, and how to use it to create real value in business and beyond? This huge curated collection of articles will help you to explore key concepts, methods, tools... - #6
Software Architecture
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before...
Featured Course
Top Courses
![Learn Python the Practical Way [Coding Interview Exercises]](https://dclrlzd4gl55u.cloudfront.net/980/s_list?1621305126)
Featured Track
The following 7 courses are included in this track...
Machine Learning Made Simple, The Smartest Way to Learn Python Regex, Learn Python the Practical Way [Coding Interview Exercises], Python Exercises Collection, Python Lambdas Deep Dive, Your Python One-Liner Superpower, The Complete Guide to PyCharm
Top Tracks
Leanpub: Publish Early, Publish Often
On Leanpub, you can publish your book while you write it, and earn 80% royalties.
We call this Lean Publishing, and it's why Leanpub exists. Lean Publishing is the act of publishing an in-progress book using lightweight tools and many iterations to get reader feedback, pivot until you have the right book and build traction once you do. You can learn more about Lean Publishing in The Lean Publishing Manifesto, or watch the Tools of Change conference talk about it. There's even a book about these ideas, which still guide us today.
Leanpub is a magical typewriter for authors: just write in plain text, and to preview or publish your ebook, just click a button. On Leanpub, you can write in Markdown and generate your ebook with one click. (Markdown is really easy: everything you need to know is in the template we set up for you when you create a new book.)
Now, if you have completed a book already or if you have a writing workflow you prefer, you can also just upload your own PDF or EPUB files and click a button to publish them.
Whether you're writing in Markdown or uploading PDF and EPUB files, Leanpub is the best place to write, publish and sell in-progress and completed ebooks, with coupons, variable pricing, bundles and more. Besides how easy we make everything and the excellent support we provide, the other reason authors love Leanpub is our 80% royalty rate.
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98.
You earn $8 on a $10 sale, and $16 on a $20 sale.
So, if we sell 5000 copies of your book for $20, you'll earn $80,000. Yes, some authors have already earned much more than that on Leanpub. In fact, authors have earned over $14 million USD writing, publishing and selling on Leanpub.
Finally, Leanpub also supports publishing online courses, using the same Lean Publishing approach and Markdown-based workflow that we use for ebooks, and paying the same 80% royalties! To learn more, just create a course: the new course will contain a template which shows you how to get started.
Leanpub Promotes Authors
Leanpub does a lot to promote authors and their books. We constantly promote books on social media, especially new releases and bestsellers. We create short videos to help promote selected new books, and you can apply to have us record and produce a book launch video with you - for free. Leanpub co-founder Len Epp also records in-depth long-form interviews with select authors for our Frontmatter podcast, and we provide you with a range of marketing tools, from custom coupons to affordably-priced sponsored spots in our Weekly and Monthly newsletter sales.
Reader Memberships
Leanpub reader memberships support Leanpub authors and Leanpub!
Leanpub is a platform where authors self-publish ebooks and online courses. We're a bootstrapped startup, and we launched in 2010.
Leanpub Reader Memberships are a great deal. They give you you free access to about 2000 books on Leanpub that are only free with membership. This includes hundreds of books about computer programming, data science, software architecture and more!
Besides being a great deal, Reader Memberships support Leanpub authors! Specifically, 50% of the money from Reader Memberships is paid as royalties to Leanpub authors.
The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.
You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!
So, there's no reason not to click the Add to Cart button, is there?
See full terms...
Earn $8 on a $10 Purchase, and $16 on a $20 Purchase
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earnedover $14 millionwriting, publishing and selling on Leanpub.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
