By Rohith B Vex-Metaex-Amazonex-HubSpot
The big ideas behind algorithms and computing (how machines search, decide, store and run, and how to break hard problems into easy ones), explained for anyone curious. Built on everyday analogies and hand-drawn diagrams, with no code required.
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For decades, computer scientists have quietly solved the same problems you face every day: when to stop searching and commit, how to choose under uncertainty, how a machine turns a pile of yes-or-no switches into 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 a machine actually works, 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, decide, divide and conquer. Computing Simplified is how it all runs: bits, memory, the call stack, the event loop. 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, including four years at Meta on Workplace's billing and monetization, a senior role at HubSpot, and backend services and internal tools at Amazon, across the Warehouse Deals and Textbook Rentals teams. I most recently founded Topolog, where I designed and shipped a typed planning language end to end.
I wrote Algorithms Simplified, and then Computing Simplified, as the books I wish more people had access to: ones that explain the why behind each idea, distil it down, and use a diagram wherever a diagram explains it faster. They are written for anyone curious about how these ideas work (no programming background needed) and double as a genuinely useful refresher for engineers prepping interviews.
The diagrams are hand-made, with thanks to my dad for his help on them.
Each book comes with its interactive companion: the demos above, downloadable and yours to tinker with offline.
How to search, sort, choose under uncertainty, and break hard problems into easy ones.
Algorithms and computing together: breadth and depth, the whole picture, at the best price.
How machines store, run and coordinate: bits, the call stack, the event loop, and more.
14-day money-back guarantee
Secure checkout · instant download
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.
A DRM-free PDF. Read it on your phone, tablet, computer or e-reader, and it's yours to keep forever.
Instantly. Checkout is handled by Lemon Squeezy, and your download link is shown right after payment and emailed to you.
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 bits, the call stack, the event loop, concurrency and more.
Either. Algorithms Simplified is about how to solve problems; Computing Simplified is about how a machine actually works. They stand alone, and the collection bundles both at the best price.
Yes. If the book isn't for you, email rohith@rohith.co.uk within 14 days of your purchase for a full refund, no hard feelings.
Anyone curious about the ideas behind algorithms, 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.
70+ readers, zero refunds
14-day money-back guarantee
Secure checkout