Books for the people who
keep systems running.
A small, opinionated shelf on backend engineering, databases and reliability — the unglamorous machinery your product actually stands on. Each title goes deep on one thing and earns its place on your desk.
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Featured
€32.00
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A few titles worth your evening
Hand-picked places to begin. Open the full chapter list on any of them and see exactly what you’re getting before a cent changes hands.
Designing Resilient APIs
Contracts, versioning and graceful failure for services people depend on
Concurrency in Practice
Threads, async and lock-free patterns for services under real load
The Query Performance Playbook
Indexes, execution plans and the art of a fast SELECT
Observability from Day One
Logs, metrics and traces you can actually debug an incident with
Better together
Bundles that save you money
Titles that belong on the same shelf, packaged together for less than buying them one at a time.
Three shelves
Three shelves, one craft
From the service layer down to the database and out to the cloud that runs it. Pick the corner of the stack you want to get sharper at.
Why these are different
Meant to be kept open, not shelved
Written from the on-call side
Every chapter is shaped by what actually breaks in production — the timeouts, the lock waits, the 3am pages — not the tidy version that only exists in a tutorial.
One idea, followed all the way through
Each book is a single argument built end to end, with a real table of contents and worked examples — not a pile of loosely related posts stapled together.
Principles that outlast the tooling
Frameworks come and go; contracts, backpressure and query plans don't. We teach the ideas underneath so the knowledge keeps paying off after the logo on the box changes.
A PDF that's simply yours
Download it, search it, annotate it, keep it forever. No login walls, no expiring links, no subscription quietly renewing in the background.
About the author
Omar El Alaoui
Data & systems engineer
Every DataShelf Hub title is written by a working backend engineer who has spent years shipping services, wrestling databases and carrying a pager. The idea is simple: take the lessons that usually cost a few outages to learn and hand them over as something you can read in a weekend.
Not sure which title fits where you are? Ask — happy to point you.
support@datashelfhub.comGet sharper at the stack — one book at a time
Grab a shelf, open a title, and start reading tonight. Every book is a DRM-free PDF that’s yours the moment you buy it.