Rosa orders a book online. She works during the day, so she is not usually at home when deliveries arrive. This time, she chooses a parcel locker near her supermarket. A parcel is a package. The locker has small doors where delivery workers leave packages.
On Wednesday, Rosa gets a message. Her book is ready to collect. The message includes a code and tells her to collect the parcel by Friday evening. She plans to get it after work on Thursday.
At the locker, Rosa enters her code on the screen. A small door opens. She takes out the parcel and closes the door. Then she goes to the supermarket to buy bread and milk. Both jobs are done in one trip.
At home, Rosa opens the package. It is the right book, and it is not damaged. She keeps the order email until she is sure everything is fine. She likes the locker because she can collect her book after work instead of waiting at home.