An appeal is not a second trial, and almost every disappointed litigant misunderstands it in the same way. This article explains what an appellate court actually does, why the standard of review decides most appeals before any argument is heard, and why the case is largely won or lost in the trial court through preservation. It covers the final judgment rule and its exceptions, the deadline that cannot be extended, the record that constrains everything, and the difference between an error and a reversible error. It follows two fictional appeals from identical trial losses to opposite outcomes. The practical thesis is that appellate work begins at the pretrial conference, not after the verdict.