diff --git a/08-running-containers/Makefile b/08-running-containers/Makefile
index eab4a7d..3faeab9 100644
--- a/08-running-containers/Makefile
+++ b/08-running-containers/Makefile
@@ -43,6 +43,7 @@ docker-run-all:
 	docker run -d \
 		--name db \
 		-e POSTGRES_PASSWORD=foobarbaz \
+		-v pgdata:/var/lib/postgresql/data \
 		-p 5432:5432 \
 		--restart unless-stopped \
 		postgres:15.1-alpine
diff --git a/08-running-containers/docker-compose.yml b/08-running-containers/docker-compose.yml
index 0db8a14..be1bd85 100644
--- a/08-running-containers/docker-compose.yml
+++ b/08-running-containers/docker-compose.yml
@@ -42,7 +42,11 @@ services:
     restart: unless-stopped
   db:
     image: postgres:15.1-alpine
+    volumes:
+      - pgdata:/var/lib/postgresql/data
     environment:
       - POSTGRES_PASSWORD=foobarbaz
     ports:
       - 5432:5432
+volumes:
+  pgdata:
\ No newline at end of file
diff --git a/09-interacting-with-containers/README.md b/09-interacting-with-containers/README.md
new file mode 100644
index 0000000..9c066f2
--- /dev/null
+++ b/09-interacting-with-containers/README.md
@@ -0,0 +1,35 @@
+# Interacting with Containers and Other Docker Objects
+
+## Images
+
+1) ls
+2) build
+3) tag
+4) pull
+5) push
+6) rm
+7) prune
+8) save
+
+## Containers
+
+1) ls
+2) run
+3) start
+4) attach
+5) exec
+6) logs
+7) top
+8) cp
+9) stop
+10) kill
+11) prune
+12) export
+
+## Volumes
+
+1) ls
+2) create
+3) inspect
+4) rm
+5) prune