DebugPoint published a step by step tutorial about installing the Cinnamon Desktop in Arch Linux.

How to Install Cinnamon Desktop in Arch Linux [Step by Step]

Cinnamon is the default desktop environment for Linux Mint. This quick guide explains the steps to install the Cinnamon desktop environment in Arch Linux. The Cinnamon desktop environment is the default desktop flavor for Linux Mint. This GTK based desktop environment is created to provide a traditional desktop flavor with old GNOME (i.e. pre-GNOME 3

How to Install Cinnamon Desktop in Arch Linux [Step by Step]