Plain-English guides to conditional statements, diagramming, and the specific confusions that cost the most points. No filler, no score guarantees, and a worked example in every post you can check yourself.
Foundations
Formal Logic and the LSAT: How Much Do You Actually Need?
A guided walkthrough in Aristotle's Booty
A straight answer on how much of the LSAT really turns on formal logic, what the published question-type data actually shows, and the order to learn the toolkit in.
Conditional logic
How to Diagram "Unless" on the LSAT
The Swap-Flip-Keep method for EEUUW indicators, taught in Aristotle's Booty
Unless, until, without, except and either - the Yucky Conditionals. One method translates all five in a single step, with no double negatives to untangle.
Logical reasoning
Sufficient vs. Necessary: The Most Common Flaw on the LSAT
Learn it in Aristotle's Booty, drill it in Diagram Cracker and Come Flaw With Me
The most common flaw in the most common question type, on the section that now carries two of your three scored sections. How to spot it, and how to negate correctly.
Flaws and fallacies
The Famous Flaws: 31 Ways an LSAT Argument Breaks
Learn and drill every one in Come Flaw With Me
Flaw is the single most common Logical Reasoning question type. Here are the 31 that keep showing up, grouped so you can learn them in a sensible order rather than as a wall of Latin.
Looking for something more general? The LSAT preparation FAQ covers how hard the test is, how long to study, and where formal logic fits into a wider prep plan.