> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.peak-pim.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# 🧩 Core concepts: products, variants, collections and media

Peak PIM organizes your Shopify catalog into four simple building blocks.

# The four building blocks

###### Products
The items you sell, for example a t-shirt.

###### Variants
The specific versions of a product, for example the t-shirt in Small / Blue. Every product has at least one variant.

###### Collections
Groups of products, for example a Summer Sale collection.

###### Media
Your images and videos, kept in one library so you can reuse them across products and collections.

# Why this matters

Understanding these four pieces makes everything else in Peak PIM easier, because each feature is just a way of creating, editing or publishing one of them.