This short tutorial shows how to build a simulation model based on a real-world problem description, using an example of a simple warehouse unloading process model. Also, it teaches to set animation and choose what-if scenarios to test. The AnyLogic User Support Team created the tutorial. The model simulates the arrival of trucks with two types of cartons to a warehouse. Workers unload the cartons, which then move on conveyors to the pallet stacking zone. After palletizing, the goods are moved by forklift trucks to the storage zone. Download the tutorial and accompanying material via our website.