Shopify basics

These guides cover what is the same for every theme in your store: where themes live, how the theme editor works, and how to update or back up a theme without losing work. Each theme’s own guide builds on them.

Install a themeTry a theme for free, buy it, and find it in your theme library.

The theme editorSections, blocks, theme settings, and moving around without getting lost.

Update a themeWhat updates itself, what you start, and what carries over.

Duplicate, back up and previewWork on a copy, share a preview, keep a file of your theme.

Custom CSS and LiquidSmall changes that survive theme updates.

Working with a developerFinding one, giving access, and what to ask for.