diff --git a/headFirst/routines/go.mod b/headFirst/routines/go.mod
new file mode 100644
index 0000000..2359d15
--- /dev/null
+++ b/headFirst/routines/go.mod
@@ -0,0 +1,3 @@
+module main
+
+go 1.24.6
diff --git a/headFirst/routines/main.go b/headFirst/routines/main.go
new file mode 100644
index 0000000..e630597
--- /dev/null
+++ b/headFirst/routines/main.go
@@ -0,0 +1,46 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+)
+
+func errCheck(err error) {
+	if err != nil {
+		log.Fatalln("Error happened %v\n",err)
+	}
+}
+
+func responseSize(url string, out chan Page) {
+	fmt.Println("Getting ",url)
+	response,err := http.Get(url)
+	errCheck(err)
+	defer response.Body.Close()
+
+	body,err := io.ReadAll(response.Body)
+	errCheck(err)
+
+	out <- Page{URL: url, Size: len(body)}
+
+}
+
+type Page struct {
+	URL string
+	Size int
+}
+
+func main() {
+	size := make(chan Page)
+	urls :=[]string{"https://google.com","https://golang.org","https://golang.org/doc"}
+	for _,url := range urls {
+		go responseSize(url,size)
+	}
+	fmt.Println("--------")
+	for i:=0; i < len(urls);i++ {
+		page := <- size
+		fmt.Printf("%s: %d\n",page.URL,page.Size)
+	}
+	fmt.Println("End main()")
+}