Guides
Long-form, opinionated guides on learning to code, acing interviews, and leveling up — each one pointing to the crash book that goes deeper.
Getting started
Roadmaps, first language, and how to actually break in.
- How to Become a Software Developer in 2026 (Without a Degree) Start here
- How Long Does It Take to Learn to Code?
- How to Build a Developer Portfolio That Gets Interviews
- How to Escape Tutorial Hell (and Actually Build Things)
- How to Practice Coding Every Day (Without Burning Out)
- Self-Taught vs Bootcamp vs CS Degree: Which Path?
- The Software Engineer Career Ladder: Junior to Staff and Beyond
- What Does a Staff Engineer Actually Do?
JavaScript
From your first week to closures and the event loop.
- How to Learn JavaScript in 2026: A Step-by-Step Roadmap Start here
- 15 Common JavaScript Mistakes (and How to Avoid Them)
- Can You Really Learn JavaScript in a Week?
- ES6+ Features Every JavaScript Developer Should Know
- JavaScript Array Methods: map, filter and reduce Explained
- JavaScript Closures, Explained (With Examples)
- JavaScript Interview Questions: The Topics That Actually Come Up
- Promises and async/await in JavaScript, Explained
- The 'this' Keyword in JavaScript, Finally Explained
- var vs let vs const in JavaScript (Scope and Hoisting)
Python
Syntax, idioms, and the internals interviewers ask about.
- How to Learn Python in 2026: A Step-by-Step Roadmap Start here
- *args and **kwargs in Python, Explained
- 15 Common Python Mistakes Beginners Make
- Lists vs Tuples vs Sets vs Dicts in Python (When to Use Each)
- Python Comprehensions Explained (List, Dict, Set)
- Python Decorators Explained (With Examples)
- Python Generators and the yield Keyword, Explained
- Python Interview Questions: The Topics That Come Up
- Python OOP: Classes, __init__ and self, Explained
- Python Virtual Environments and pip, Explained
- The Python GIL, Explained (and How to Work Around It)
Java
OOP, the JVM, collections, streams and modern Java.
- How to Learn Java in 2026: A Step-by-Step Roadmap Start here
- == vs equals() and hashCode() in Java, Explained
- Checked vs Unchecked Exceptions in Java, Explained
- Java Concurrency Explained: Threads, Locks and the Memory Model
- Java Interview Questions: The Topics That Come Up
- Java Streams and Lambdas, Explained (With Examples)
- Modern Java (17–21): Records, Sealed Classes, Pattern Matching
- The Four Pillars of OOP in Java (Explained Simply)
- The Java Collections Framework, Explained
- The JVM and Garbage Collection in Java, Explained
Coding interviews
Data structures, algorithms, and the patterns that recur.
- The Complete Coding Interview Prep Roadmap (2026) Start here
- Arrays and Strings: The Coding Interview Patterns
- Big O Notation Explained (No Math Degree Needed)
- Dynamic Programming Explained (for Beginners)
- Graphs, BFS and DFS Explained (for Interviews)
- Hash Tables and Hash Maps Explained
- How to Cram a Programming Language for an Interview
- Linked Lists Explained (for Coding Interviews)
- Recursion Explained: How to Actually Think Recursively
- Sorting Algorithms Compared (Big O Cheat Sheet)
- System Design Interview Basics (A Beginner's Framework)
- The 8 Data Structures Every Developer Should Know
- The Sliding Window Pattern Explained
- The STAR Method: How to Ace Behavioral Interviews
- The Two-Pointer Technique Explained
- Trees and Binary Search Trees Explained
Comparisons
Which language, which depth — honest head-to-heads.