97 things that a programmer should know

Act with Prudence
Apply Functional Programming Principles
Ask "What Would the User Do?" (You Are Not the User)
Automate Your Coding Standard
Beauty Is in Simplicity
Before You Refactor
Beware the Share
The Boy Scout Rule
Check Your Code First Before Looking to Blame Others
Choose Your Tools with Care
Code in the Language of the Domain
Code Is Design
Code Layout Matters
Code Reviews
Coding with Reason
A Comment on Comments
Comment Only What the Code Cannot Say
Continuous Learning
Convenience Is Not an –ility
Deploy Early and Often
Distinguish Business Exceptions from Technical
Do Lots of Deliberate Practice
Domain-Specific Languages
Don't Be Afraid to Break Things
Don't Be Cute with Your Test Data
Don't Ignore That Error!
Don't Just Learn the Language, Understand its Culture
Don't Nail Your Program into the Upright Position
Don't Rely on "Magic Happens Here"
Don't Repeat Yourself
Don't Touch That Code!
Encapsulate Behavior, Not Just State
Floating-Point Numbers Aren't Real
Fulfill Your Ambitions with Open Source
The Golden Rule of API Design
The Guru Myth
Hard Work Does Not Pay Off
How to Use a Bug Tracker
Improve Code by Removing It
Install Me
Inter-Process Communication Affects Application Response Time
Keep the Build Clean
Know How to Use Command-line Tools
Know Well More than Two Programming Languages
Know Your IDE
Know Your Limits
Know Your Next Commit
Large Interconnected Data Belongs to a Database
Learn Foreign Languages
Learn to Estimate
Learn to Say "Hello, World"
Let Your Project Speak for Itself
The Linker Is Not a Magical Program
The Longevity of Interim Solutions
Make Interfaces Easy to Use Correctly and Hard to Use Incorrectly
Make the Invisible More Visible
Message Passing Leads to Better Scalability in Parallel Systems
A Message to the Future
Missing Opportunities for Polymorphism
News of the Weird: Testers Are Your Friends
One Binary
Only the Code Tells the Truth
Own (and Refactor) the Build
Pair Program and Feel the Flow
Prefer Domain-Specific Types to Primitive Types
Prevent Errors
The Professional Programmer
Put Everything Under Version Control
Put the Mouse Down and Step Away from the Keyboard
Read Code
Read the Humanities
Reinvent the Wheel Often
Resist the Temptation of the Singleton Pattern
The Road to Performance Is Littered with Dirty Code Bombs
Simplicity Comes from Reduction
The Single Responsibility Principle
Start from Yes
Step Back and Automate, Automate, Automate
Take Advantage of Code Analysis Tools
Test for Required Behavior, Not Incidental Behavior
Test Precisely and Concretely
Test While You Sleep (and over Weekends)
Testing Is the Engineering Rigor of Software Development
Thinking in States
Two Heads Are Often Better than One
Two Wrongs Can Make a Right (and Are Difficult to Fix)
Ubuntu Coding for Your Friends
The Unix Tools Are Your Friends
Use the Right Algorithm and Data Structure
Verbose Logging Will Disturb Your Sleep
WET Dilutes Performance Bottlenecks
When Programmers and Testers Collaborate
Write Code as If You Had to Support It for the Rest of Your Life
Write Small Functions Using Examples
Write Tests for People
You Gotta Care About the Code
Your Customers Do Not Mean What They Say