Think Straight, Argue Better
Fallacies, valid vs sound, steel-manning, rhetoric, and a 30-day practice program.
Argue Better
A rigorous adult book, a grades 3–5 companion, and free classroom tools — practice clear thinking now while the books prepare for fall 2026.
Pick your path
Adults or Super Thinkers
Same craft, different voice. Start where you are.
Think Smart, Argue Fair
Claim + reason, sneaky tricks, and fair disagreement — built for classrooms and families.
Guides
Learn the ideas, then drill them
Quotable explainers for search, study, and classrooms.
Core logic
Valid vs Sound Arguments: The Difference That Matters
Validity is about structure. Soundness is structure plus truth. Confusing the two is one of the most common mistakes in everyday debate.
Fair debate
Steel-Manning: The Opposite of a Straw Man
Steel-manning means restating someone else's position in its strongest fair form before you criticize it. It is the single highest-leverage habit in honest disagreement.
Clear thinking
Hidden Assumptions and Enthymemes
Most everyday arguments skip a step. Hidden-assumption spotting means writing that missing premise so you can accept, reject, or revise it on purpose.
Tool of the week
Hidden Assumption Finder
Name the unstated premise that makes an argument work.
Open tool Or start the 30-day programFree companion
Practice without buying anything
Quizzes, mappers, and kid-friendly builders drawn from the books’ drills.
Fallacy Spotter
Read a short argument and name the trick. Instant feedback.
Valid vs Sound Checker
Tell valid from sound — and spot invalid forms.
Hidden Assumption Finder
Name the unstated premise that makes an argument work.
Ethos · Pathos · Logos Analyzer
Label appeals and spot honest vs manipulative rhetoric.
Socratic Question Generator
Paste a claim; get clarifying and steel-man questions.
Argument Mapper
Break a claim into conclusion, premises, and hidden assumptions.