By Rohith B Vex-Metaex-Amazonex-HubSpot
How machines search, decide, store and run, in everyday analogies and hand-drawn diagrams. No code. Available as full-colour hardcovers or PDFs.
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One of the most engaging and thoughtfully designed learning resources I’ve come across.
The author breaks down complex concepts using real-world analogies and simple, intuitive explanations. The writing is fluid and almost story-like, which keeps the reader engaged while building a strong conceptual foundation. The interactive companions turn passive reading into an active learning experience.
As an educator, I strongly appreciate resources that promote true understanding over rote learning, and this collection does exactly that.
Each book comes with its interactive companion: the demos you can try further down, downloadable and yours to tinker with offline.
Every hardcover includes the PDF free. Printed to order in full colour throughout, and dispatched in 3 to 8 working days from the UK, the US or Canada, whichever is closest to you. Postage from £3.95 in the UK, and worked out for your address at checkout, where you pick the service.
DRM-free PDF, yours on any device. The download link is shown the moment you pay, and emailed to you as well.
Single print book (163 pages) + free PDFSingle PDF (163 pages) + 14 live demos
How to search, sort and break hard problems into easy ones, over graphs and tables.
Both print books (501 pages) + free PDFsBoth PDFs (501 pages) + 35 live demos
How to solve a problem, and how the machine that runs it works. Read either first.
Includes both PDFs free
Single print book (338 pages) + free PDFSingle PDF (338 pages) + 21 live demos
What really happens when you type a web address, send a message, or two people spend from one account.
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For decades, computer scientists have quietly solved the same problems you face every day: how to break something hard into pieces you can actually do, how to find one thing among millions, how a pile of yes-or-no switches becomes a working program. These two books hand you those ideas in plain language.
Computer science gets taught as code and proofs, walled off behind a programming background most people never have the time to get.
Start from how a problem is shaped and how machines actually work, using everyday analogies (a recipe, a phone book, a nightclub bouncer) and clear, hand-drawn diagrams. No code required.
Algorithms Simplified is how to solve: search, sort, divide and conquer. Computing Simplified is how it all runs: bits, memory, the network, and many things happening at once. Read either first; together they are the whole picture.
Problem-solving, computation and complexity, data structures, and the classic algorithms, by intuition.
What a computer really is: bits, storage, processes, concurrency, networks, and the graph underneath it all.
Actual pages from each book, not a marketing summary. If the approach lands for you, the rest is more of the same.
Pulled straight from the interactive companions: press play, pause, and step through.
I'm Rohith, a software engineer with over a decade building production systems. Four years at Meta, on Workplace's billing and monetization. A senior role at HubSpot before that, and backend services at Amazon. Most recently I founded Topolog, and shipped a typed planning language end to end.
I wrote Algorithms Simplified, then Computing Simplified. They are the books I wish I'd had: the why behind each idea, distilled, with a diagram wherever a diagram is faster. No programming background needed. They also work as a refresher if you're prepping interviews.
No. There's no programming or advanced maths required. It's built on everyday analogies and hand-drawn diagrams, written for anyone curious about how these ideas work.
Both physical and digital. The PDF is DRM-free: read it on your phone, tablet, computer or e-reader, and it's yours to keep forever. Every hardcover is printed in full colour throughout and includes the PDF free, claimed from your receipt after checkout.
The PDF is instant. Checkout is handled by Shopify, and your download link is shown right after payment and emailed to you. Hardcovers are printed to order and usually dispatched in 3 to 8 working days. Postage is added at checkout and you choose the service. In the UK that runs from £3.95 second class up to next-day tracked.
From whichever Bookvault facility is closest to you: the UK, the US or Canada. Most orders are posted domestically rather than sent across an ocean, and we ship anywhere. Postage is worked out for your address at checkout. Prices are in pounds sterling and your card is charged in pounds, so your bank applies its own conversion. PDFs and interactive companions download anywhere and carry no postage at all.
Each book has its own: downloadable HTML animations you open offline and play, pause and step through. Algorithms covers sorting, binary search, dynamic programming and graph traversal; Computing covers characters as bits, a queue absorbing a spike, one core juggling many tasks, and how a flood finds the shortest route.
Either. Algorithms Simplified is about how to solve problems; Computing Simplified is about how machines actually work. They stand alone, and the collection bundles both at the best price.
Yes. Email rohith@rohith.co.uk for a full refund, no hard feelings. For PDFs that is within 14 days of your purchase. For hardcovers it is 30 days from purchase, a longer window because it has to reach you first.
Anyone curious about the ideas behind algorithms and computing, no background needed. It also works as a sharp refresher if you're an engineer prepping interviews.
Two books, no code, just the ideas. Start building real intuition today, in algorithms, in computing, or in both.
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