Print-ready notebook handbooks
32 handwritten-style volumes across 6 subjects — 747 pages of diagrams, trade-offs, production rules and interview questions. Pay once, keep every future update.
₹299₹1,568one-time · all 32 volumes
01The handbooks
Every handbook is one subject in one or more volumes. Buy a handbook, or the whole library, and read it for as long as you like.
7 volumes · 170 pages
HLD, LLD, case studies and interview prep, end to end — seven volumes, 170 pages.
For: Freshers to senior engineers preparing for system-design and low-level-design interview rounds.
2 volumes · 58 pages
Running real workloads on AWS — one page per service, plus a second volume on EKS, events, identity, data and AI.
For: Backend and DevOps engineers who run, secure and pay for real workloads on AWS.
4 volumes · 88 pages
Pure Python from core language and OOP to internals, concurrency, data and AI — four volumes for freshers to 5-year engineers.
For: Freshers up to engineers with about five years of experience — learners and interview candidates.
6 volumes · 135 pages
From ASGI and Pydantic to auth, async databases, queues, production and architecture — six volumes, 135 pages, every snippet run.
For: Backend engineers from first API to senior system design — learners, Flask / Django switchers and interview candidates.
7 volumes · 153 pages
ML foundations, LLMs and RAG, agents, inference, evaluation, security, MLOps and AI system design — seven volumes, 153 pages.
For: Engineers building LLM, RAG and agent products — from ML basics to shipping and operating them.
6 volumes · 143 pages
Django from request lifecycle to production architecture — ORM and PostgreSQL, auth and DRF, async and Celery, operations, design and interviews. Six volumes, 143 pages, every snippet executed.
For: Python developers moving into Django, up to engineers with about five years of experience preparing for senior Django and system-design interviews.
02On the page
Each handbook states who it is for and what every page carries, so you know what you are buying before you open it.
Who it is forFreshers to senior engineers preparing for system-design and low-level-design interview rounds.
Each page hasa diagram, how it works, trade-offs, production rules, common mistakes and interview questions.
Who it is forBackend and DevOps engineers who run, secure and pay for real workloads on AWS.
Each page hasOne focused topic, laid out as a notebook page.
Who it is forFreshers up to engineers with about five years of experience — learners and interview candidates.
Each page hasOne focused topic, laid out as a notebook page.
Who it is forBackend engineers from first API to senior system design — learners, Flask / Django switchers and interview candidates.
Each page hasa diagram, code that was actually run, tables, production rules, common mistakes and interview questions.
Who it is forEngineers building LLM, RAG and agent products — from ML basics to shipping and operating them.
Each page hasOne focused topic, laid out as a notebook page.
Who it is forPython developers moving into Django, up to engineers with about five years of experience preparing for senior Django and system-design interviews.
Each page hasa diagram or runnable code, tables, production rules, common mistakes and interview questions.
03Read, print, keep
One payment, no subscription. The handbook stays in your library and gets better as it is revised.
Open a volume and read it page by page on any device you are signed in on.
Every page is laid out for A4. Print it, or save it as a PDF and annotate it.
Revised and new volumes of a handbook you own appear in your library at no cost.
A free account opens the first pages of any volume, so you read before you pay.
04The whole library
All 32 volumes across 6 subjects, plus every volume added later.
747 pages today. New and revised volumes appear in your library free.
05With the rest of the site
Learn a subject in the topic, look up the syntax on the cheatsheet, and keep the handbook for revision and print.
?Questions
Sample pages of every volume are free with an account. Buy when you want the rest, and keep it for good.
