3rd chunk of `content/get-started/docker-concepts/the-basics/what-is-an-image.md`
d16fa1433a60f002429ea86d144b1d9f28d14858df21af500000000100000992
NAME DESCRIPTION STARS OFFICIAL
docker/welcome-to-docker Docker image for new users getting started w… 20
```
This output shows you information about relevant images available on Docker Hub.
2. Pull the image using the [`docker pull`](/reference/cli/docker/image/pull.md) command.
```console
docker pull docker/welcome-to-docker
```
You will see output like the following:
```console
Using default tag: latest
latest: Pulling from docker/welcome-to-docker
579b34f0a95b: Download complete
d11a451e6399: Download complete
1c2214f9937c: Download complete
b42a2f288f4d: Download complete
54b19e12c655: Download complete
1fb28e078240: Download complete
94be7e780731: Download complete
89578ce72c35: Download complete
Digest: sha256:eedaff45e3c78538087bdd9dc7afafac7e110061bbdd836af4104b10f10ab693
Status: Downloaded newer image for docker/welcome-to-docker:latest
docker.io/docker/welcome-to-docker:latest
```
Each of line represents a different downloaded layer of the image. Remember that each layer is a set of filesystem changes and provides functionality of the image.
### Learn about the image
1. List your downloaded images using the [`docker image ls`](/reference/cli/docker/image/ls.md) command:
```console
docker image ls
```
You will see output like the following:
```console
REPOSITORY TAG IMAGE ID CREATED SIZE
docker/welcome-to-docker latest eedaff45e3c7 4 months ago 29.7MB
```
The command shows a list of Docker images currently available on your system. The `docker/welcome-to-docker` has a total size of approximately 29.7MB.
> **Image size**
>
> The image size represented here reflects the uncompressed size of the image, not the download size of the layers.
2. List the image's layers using the [`docker image history`](/reference/cli/docker/image/history.md) command:
```console
docker image history docker/welcome-to-docker
```
You will see output like the following:
```console
IMAGE CREATED CREATED BY SIZE COMMENT
648f93a1ba7d 4 months ago COPY /app/build /usr/share/nginx/html # buil… 1.6MB buildkit.dockerfile.v0
<missing> 5 months ago /bin/sh -c #(nop) CMD ["nginx" "-g" "daemon… 0B