diff --git a/01 Non blocking/README.md b/01 Non blocking/README.md
index 70ded49..e0be106 100644
--- a/01 Non blocking/README.md	
+++ b/01 Non blocking/README.md	
@@ -6,7 +6,7 @@ $ npm install
 ```
 * After installation, we can run the application using:
 ```bash
-$ npm install
+$ npm start
 ```
 * To get results on the open browser app:
     * house: `House Lannister of Casterly Rock`
@@ -14,14 +14,14 @@ $ npm install
 
 ## In this demo we are going to study the non blocking nature of JavaScript
 
-* Just one thing can happen per time in JavaScript. But the required time to get data loaded is really short. Is not just to have a really good network capabilities, there is another reason.
+* Just one thing can happen at a time in JavaScript. But the required time to get data loaded is really short. This is not just because good network capabilities. There is another reason.
 
-* Looking into the code this reason is not so obviously.We can think looking the `main.js` code that:
+* Looking into the code, this reason doesn't seem so obvious. We could think, by looking at `main.js` code, that:
     * While this request `service.getHousesByName(houseInput.value, housesRequestConfig);` does not end...
     * This one `service.getCharactersByName(characterInput.value, charactersRequestConfig);` is not going to start
 
-* If we already have been working with callbacks, we are use to initialize a request and then proceed with the execution.
+* If we have been already working with callbacks, we are used to initialize a request and then proceed with the execution.
 
-* But if just one thing per time it's executed, how is this possible?
+* But if just one thing at a time is executed, how is this possible?
 
-* Opening the developer tools on Chrome, open the network tab. Here  we can watch that the requests are sending concurrently.
+* Inside Chrome developer tools, on the network tab, we can notice that the requests are being sent concurrently.
diff --git a/01 Non blocking/src/js/main.js b/01 Non blocking/src/js/main.js
index 357fbfa..88dbfc8 100644
--- a/01 Non blocking/src/js/main.js	
+++ b/01 Non blocking/src/js/main.js	
@@ -9,36 +9,46 @@ document.onreadystatechange = () => {
             event.stopPropagation();
             const houseInput = document.getElementById('input-house');
             const characterInput = document.getElementById('input-character');
-            
+
             if (houseInput.value && characterInput.value) {
                 console.log('1');
-                const housesRequestConfig = {
-                    err: handleError,
-                    callback: handleHousesRequestSucces(apiMapper, printer)
-                };
-                service.getHousesByName(houseInput.value, housesRequestConfig);
-                console.log('2');
-                const charactersRequestConfig = {
-                    err: handleError,
-                    callback: handleCharactersRequestSuccess(apiMapper, printer)
-                };
-                service.getCharactersByName(characterInput.value, charactersRequestConfig);
-                console.log('3');
+              const charactersRequestConfig = {
+                  err: handleError,
+                  callback:handleCharactersRequestSuccess(apiMapper, printer),
+                  charService: service,
+                  charName: characterInput.value
+              };
+              const housesRequestConfig = {
+                  err: handleError,
+                  callback: handleHousesRequestSuccess(apiMapper, printer, getCharacters, charactersRequestConfig)
+              };
+              console.log('house call');
+              service.getHousesByName(houseInput.value, housesRequestConfig);
+              console.log('3');
             } else {
-                alert('Introduce a values')
+                alert('Introduce values')
             }
         });
     };
 
+    function getCharacters (charactersRequestConfig) {
+      //const service = new apiIceAndFire.Service();
+      charactersRequestConfig.charService.getCharactersByName(charactersRequestConfig.charName, charactersRequestConfig);
+      console.log('character Call');
+    }
+
     function handleError() {
         console.log(JSON.parse(this.responseText));
     };
 
-    function handleHousesRequestSucces(apiMapper, printer) {
+    function handleHousesRequestSuccess(apiMapper, printer, callback, charactersRequestConfig) {
         return function () {
             const data = JSON.parse(this.responseText);
             const houses = apiMapper.housesMap(data);
             printer.printHouses(houses, 'houses');
+            if(callback){
+              callback(charactersRequestConfig);
+            }
         };
     };
 
@@ -54,3 +64,4 @@ document.onreadystatechange = () => {
         load();
     }
 };
+