LLM Engineering, from Component to Production is a practical, measurement-first guide to building a local-first agentic retrieval-augmented generation system. Across sixteen chapters, one evolving codebase, and a sequence of hands-on labs, it treats the language model as a fallible soft...
Artificial Intelligence is rapidly transforming how enterprises build software, automate business processes, and make decisions. Yet many organizations struggle to move beyond isolated AI experiments because they lack a clear architectural foundation for integrating AI into complex ente...
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For a decade the industry outsourced its thinking and treated hypervisors like electricity. Then the landlord changed the locks. When the renewal letter lands at 567% of last year's bill, it isn't a price rise — for many organisations it's an extinction event. This book is the escape tu...
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A man threatens civilization itself, even though he shouldn't be able to affect much of anything at all. It's 1022 AD. For more than a millennium, the Council has ruled the known world. Now it is terrified of a man who should hardly matter at all. Young and weak, he is on the trail of s...
This book is free. Your agent passed every load test. It's timing out in production anyway. The performance playbook that served us for twenty years assumed one thing: the system does roughly the same work for every request. Agentic AI breaks that assumption. An agent decides at runtime...
Logic isn’t just for mathematicians and detectives! It’s also a great addition to any programmer's toolkit. Building on the foundation of Booleans and sets, this book will teach you how to: Simplify complex conditionals and database queries Write tests that cover a hundred cases instead...
Architecture Synthesis derives where computation happens — deployment topology, data placement, consistency boundaries, recovery — from a system's service-level objectives, instead of choosing it from a catalog of styles. Derived, not chosen. Most architecture books are one of two kinds...
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The Claude Certified Architect Foundations (CCAR-F) exam tests whether you can make the right architectural call under pressure, not whether you can recite definitions. This guide is built for exactly that. It covers all five exam domains, agentic architecture, tool design and MCP, Clau...
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Books
The book is for the person who owns the sign-off. The engineer whose demo now has to go live. The architect triaging a stack of agent proposals.
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In this episode of the Leanpub Podcast, Len Epp speaks with Gareth Holebrook, author of Ishi: The Discipline of Determined Intent.
Books And Writing
A Forum is a great way for you and your readers to connect with each other, and for you to get feedback about your book, and let them know about any discounts, podcast appearances, or anything else you're up to.
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In this book, a harness means the contracts, review gates, traces, checks, and measurements around an AI agent so its work can be inspected instead of merely trusted.
Books And Writing
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Beyond the Ticket: The Complete Software Support Engineer is the definitive guide to a profession that is far more technically demanding and strategically valuable than most organisations acknowledge.
Books
Data platform interviews test a different game: CDC and exactly-once semantics, Star vs. Data Vault, Kafka vs. Event Hub, watermarks, backfills, and the trade-off you must defend two levels of “why?” deep.
Books
In this episode of the Leanpub Podcast, Len Epp interviews Jay LaCroix, creator of Learn Linux TV and author of Switching to Linux: A Practical Guide for Windows and Mac Users.
Books And Writing
When you publish a book on Leanpub, you can apply to record a book launch video (for free) with Leanpub co-founder Len Epp.
Books
Systems Thinking for Agentic AI is a practical architecture book for software engineers, backend developers, technical leads, and software architects who want to design production-ready applications with large language models.
Books
The Modern Engagement Standard identifies the five signals that determine whether a person appears credible on camera: Eye Contact, Lighting, Sound, Background, and Gestures.
Books
The Python RogueLike takes you from a blank screen to a fully playable roguelike in nine focused chapters. No game engine required. No assets to buy.