diff --git a/Yavsc/ApiControllers/AccountController.cs b/Yavsc/ApiControllers/AccountController.cs
index cf28fd5c..bbc82cb8 100644
--- a/Yavsc/ApiControllers/AccountController.cs
+++ b/Yavsc/ApiControllers/AccountController.cs
@@ -144,7 +144,7 @@ namespace Yavsc.WebApi.Controllers
         /// <param name="me">MyUpdate containing the new user name </param>
         /// <returns>Ok when all is ok.</returns>
         [HttpPut("~/api/me")]
-        public async Task<IActionResult> UpdateMe(MyUpdate me)
+        public async Task<IActionResult> UpdateMe(UserInfo me)
         {
             if (!ModelState.IsValid) return new BadRequestObjectResult(
                     new { error = "Specify some valid user update request." });
diff --git a/Yavsc/Controllers/AdministrationController.cs b/Yavsc/Controllers/AdministrationController.cs
index ae3d2a48..fc41879e 100644
--- a/Yavsc/Controllers/AdministrationController.cs
+++ b/Yavsc/Controllers/AdministrationController.cs
@@ -1,5 +1,4 @@
 
-using System.Collections.Generic;
 using System.Linq;
 using System.Security.Claims;
 using System.Threading.Tasks;
@@ -7,7 +6,10 @@ using Microsoft.AspNet.Authorization;
 using Microsoft.AspNet.Identity;
 using Microsoft.AspNet.Identity.EntityFramework;
 using Microsoft.AspNet.Mvc;
+using Microsoft.Data.Entity;
 using Yavsc.Models;
+using Yavsc.Models.Auth;
+using Yavsc.ViewModels.Administration;
 
 namespace Yavsc.Controllers
 {
@@ -17,11 +19,15 @@ namespace Yavsc.Controllers
         private readonly UserManager<ApplicationUser> _userManager;
         private readonly RoleManager<IdentityRole> _roleManager;
 
+        private readonly ApplicationDbContext context;
+
         public AdministrationController(UserManager<ApplicationUser> userManager,
-         RoleManager<IdentityRole> roleManager)
+         RoleManager<IdentityRole> roleManager,
+         ApplicationDbContext context)
         {
             _userManager = userManager;
             _roleManager = roleManager;
+            this.context = context;
         }
 
         /// <summary>
@@ -47,30 +53,53 @@ namespace Yavsc.Controllers
                 AddErrors(addToRoleResult);
                 return new BadRequestObjectResult(ModelState);
             }
-            return Ok(new {message="you owned it."});
-        }
-        public class RoleInfo {
-            public string Name { get; set; }
-            public IEnumerable<string> Users { get; set; }
+            return Ok(new { message = "you owned it." });
         }
-        [Authorize(Roles=Constants.AdminGroupName)]
+        
+        [Authorize(Roles = Constants.AdminGroupName)]
         [Produces("application/json")]
-        public async Task<IActionResult> Index() {
+        public async Task<IActionResult> Index()
+        {
             var adminCount = await _userManager.GetUsersInRoleAsync(
                 Constants.AdminGroupName);
             var youAreAdmin = await _userManager.IsInRoleAsync(
                 await _userManager.FindByIdAsync(User.GetUserId()),
                 Constants.AdminGroupName);
-            var roles = _roleManager.Roles.Select(x=>
-              new RoleInfo {
-                  Name = x.Name,
-                  Users = x.Users.Select( u=>u.UserId )
-              } );
-            return Ok (new { Roles = roles, AdminCount = adminCount.Count,
-               YouAreAdmin = youAreAdmin
+            var roles = _roleManager.Roles.Include(
+                x => x.Users
+            ).Select(x => new RoleInfo {
+                Id = x.Id,
+                Name = x.Name,
+                Users = x.Users.Select(u=>u.UserId).ToArray()
+            });
+            return View(new AdminViewModel
+            {
+                Roles = roles.ToArray(),
+                AdminCount = adminCount.Count,
+                YouAreAdmin = youAreAdmin
             });
         }
         
+        public IActionResult Role(string id)
+        {
+            IdentityRole role = _roleManager.Roles
+            .Include(r=>r.Users).FirstOrDefault
+                ( r=> r.Id == id );
+            var ri = GetRoleUserCollection(role);
+            return View("Role",ri);
+        }
+
+        public RoleUserCollection GetRoleUserCollection(IdentityRole role)
+        {
+            var result = new RoleUserCollection {
+                Id = role.Id,
+                Name = role.Name,
+                Users = context.Users.Where(u=>role.Users.Any(ru => u.Id == ru.UserId))
+                .Select( u => new UserInfo { UserName = u.UserName, Avatar = u.Avatar, UserId = u.Id } )
+                .ToArray()
+            };
+            return result;
+        }
         private void AddErrors(IdentityResult result)
         {
             foreach (var error in result.Errors)
diff --git a/Yavsc/Migrations/20161209121035_bookQueryReason.Designer.cs b/Yavsc/Migrations/20161209121035_bookQueryReason.Designer.cs
index 9280e3db..3726ab32 100644
--- a/Yavsc/Migrations/20161209121035_bookQueryReason.Designer.cs
+++ b/Yavsc/Migrations/20161209121035_bookQueryReason.Designer.cs
@@ -1,7 +1,6 @@
 using System;
 using Microsoft.Data.Entity;
 using Microsoft.Data.Entity.Infrastructure;
-using Microsoft.Data.Entity.Metadata;
 using Microsoft.Data.Entity.Migrations;
 using Yavsc.Models;
 
diff --git a/Yavsc/Migrations/20161209121035_bookQueryReason.cs b/Yavsc/Migrations/20161209121035_bookQueryReason.cs
index 8b65f538..d1126ce3 100644
--- a/Yavsc/Migrations/20161209121035_bookQueryReason.cs
+++ b/Yavsc/Migrations/20161209121035_bookQueryReason.cs
@@ -1,5 +1,3 @@
-using System;
-using System.Collections.Generic;
 using Microsoft.Data.Entity.Migrations;
 
 namespace Yavsc.Migrations
diff --git a/Yavsc/Migrations/ApplicationDbContextModelSnapshot.cs b/Yavsc/Migrations/ApplicationDbContextModelSnapshot.cs
index 8ccd11ee..3c7b4b91 100644
--- a/Yavsc/Migrations/ApplicationDbContextModelSnapshot.cs
+++ b/Yavsc/Migrations/ApplicationDbContextModelSnapshot.cs
@@ -1,8 +1,6 @@
 using System;
 using Microsoft.Data.Entity;
 using Microsoft.Data.Entity.Infrastructure;
-using Microsoft.Data.Entity.Metadata;
-using Microsoft.Data.Entity.Migrations;
 using Yavsc.Models;
 
 namespace Yavsc.Migrations
diff --git a/Yavsc/ViewModels/Account/Me.cs b/Yavsc/ViewModels/Account/Me.cs
index 4b0e498d..cd6bea20 100644
--- a/Yavsc/ViewModels/Account/Me.cs
+++ b/Yavsc/ViewModels/Account/Me.cs
@@ -30,7 +30,8 @@ namespace  Yavsc.Models.Auth
         public string Address { get; set; }
     }
 
-public class MyUpdate {
+public class UserInfo {
+        public string UserId { get; set; }
     
         public string UserName { get; set; }
         public string Avatar { get; set; }
diff --git a/Yavsc/ViewModels/Administration/AdminViewModel.cs b/Yavsc/ViewModels/Administration/AdminViewModel.cs
new file mode 100644
index 00000000..24bc52f4
--- /dev/null
+++ b/Yavsc/ViewModels/Administration/AdminViewModel.cs
@@ -0,0 +1,9 @@
+
+namespace Yavsc.ViewModels.Administration {
+    
+public class AdminViewModel {
+            public RoleInfo [] Roles { get; set; }
+            public int  AdminCount { get; set; }
+            public bool YouAreAdmin { get; set; }
+        }
+}
\ No newline at end of file
diff --git a/Yavsc/ViewModels/Administration/RoleInfo.cs b/Yavsc/ViewModels/Administration/RoleInfo.cs
new file mode 100644
index 00000000..86bddde1
--- /dev/null
+++ b/Yavsc/ViewModels/Administration/RoleInfo.cs
@@ -0,0 +1,22 @@
+using System.Linq;
+using Microsoft.AspNet.Identity.EntityFramework;
+
+namespace Yavsc.ViewModels.Administration
+{
+    public class RoleInfo
+        {
+            public RoleInfo ()
+            {
+                
+            }
+            public RoleInfo ( IdentityRole role)
+            {
+                Name = role.Name;
+                  Id = role.Id;
+                  Users = role.Users.Select(u => u.UserId).ToArray();
+            }
+            public string Id { get; set; }
+            public string Name { get; set; }
+            public string[] Users { get; set; }
+        }
+}
\ No newline at end of file
diff --git a/Yavsc/ViewModels/Administration/RoleUserCollection.cs b/Yavsc/ViewModels/Administration/RoleUserCollection.cs
new file mode 100644
index 00000000..93de88a8
--- /dev/null
+++ b/Yavsc/ViewModels/Administration/RoleUserCollection.cs
@@ -0,0 +1,15 @@
+using Yavsc.Models.Auth;
+
+namespace Yavsc.ViewModels.Administration
+{
+    public class RoleUserCollection
+    {
+        public RoleUserCollection()
+        {
+            
+        }
+         public string Id { get; set; }
+            public string Name { get; set; }
+            public UserInfo[] Users { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/Yavsc/Views/Administration/Index.cshtml b/Yavsc/Views/Administration/Index.cshtml
new file mode 100644
index 00000000..a6ea5893
--- /dev/null
+++ b/Yavsc/Views/Administration/Index.cshtml
@@ -0,0 +1,22 @@
+@model AdminViewModel
+
+@{ 
+    ViewBag.Title = SR["Administration"];
+}
+
+<h2>@ViewBag.Title</h2>
+<p>
+Rôles : 
+<ul>
+@foreach (var role in Model.Roles) {
+<li>@Html.ActionLink(role.Name,"Role",new { id=role.Id }) (@role.Users.Length membres)</li>
+}
+</ul>
+</p>
+<p>
+Nombre d'administrateurs :
+@Model.AdminCount
+</p>
+<p>
+Vous êtes administrateur: @(Model.YouAreAdmin?"Oui":"Non")
+</p>
\ No newline at end of file
diff --git a/Yavsc/Views/Administration/Role.cshtml b/Yavsc/Views/Administration/Role.cshtml
new file mode 100644
index 00000000..c93f800d
--- /dev/null
+++ b/Yavsc/Views/Administration/Role.cshtml
@@ -0,0 +1,14 @@
+@model RoleUserCollection
+@{ 
+    ViewBag.Title = SR["Role"]+" "+Model.Name;
+}
+
+<h2>@ViewBag.Title</h2>
+
+<ul>
+@foreach (var user in Model.Users) {
+   <li> <img src="~/Avatars/@(user.UserName).xs.png" alt="avatar"/>
+    @user.UserName
+   </li>
+}
+</ul>
diff --git a/Yavsc/Views/_ViewImports.cshtml b/Yavsc/Views/_ViewImports.cshtml
index 4154c7e2..e591f181 100755
--- a/Yavsc/Views/_ViewImports.cshtml
+++ b/Yavsc/Views/_ViewImports.cshtml
@@ -18,6 +18,7 @@
 @using Yavsc.ViewModels.Manage;
 @using Yavsc.ViewModels.Calendar;
 @using Yavsc.ViewModels.Auth;
+@using Yavsc.ViewModels.Administration;
 
 @inject IViewLocalizer LocString
 @addTagHelper "*, Microsoft.AspNet.Mvc.TagHelpers"