diff --git a/1-hello-world/go.mod b/1-hello-world/go.mod
new file mode 100644
index 0000000..df78b6c
--- /dev/null
+++ b/1-hello-world/go.mod
@@ -0,0 +1,3 @@
+module example/user/hello
+
+go 1.17
diff --git a/1-hello-world/hello b/1-hello-world/hello
new file mode 100755
index 0000000..a08a3a5
Binary files /dev/null and b/1-hello-world/hello differ
diff --git a/1-hello-world/hello.go b/1-hello-world/hello.go
new file mode 100644
index 0000000..aa465c2
--- /dev/null
+++ b/1-hello-world/hello.go
@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Printf("hello, world\n")
+}
\ No newline at end of file
diff --git a/1-hello-world/readme.md b/1-hello-world/readme.md
new file mode 100644
index 0000000..01c030d
--- /dev/null
+++ b/1-hello-world/readme.md
@@ -0,0 +1,21 @@
+# Hello World
+Steps to reproduce
+```bash
+mkdir 1-hello-world
+cd 1-hello-world
+go mod init example/user/hello
+cat go.mod
+# first statement in a Go source file must be package name. Executable commands must always use package main. 
+
+# to run
+go run hello.go
+
+# to build and run binary
+go build
+./hello
+
+# to install binary to system
+go install example/user/hello
+# or
+go install
+```
\ No newline at end of file