diff --git a/README.md b/README.md
index 800fc5e..ac48cb6 100644
--- a/README.md
+++ b/README.md
@@ -7,8 +7,8 @@ vote and who we think wrote them and see some stats !
 
 A list of things that could be implemented/added to the application, some of them are needed for "feature completeness" !
 
- - [ ] Being able to change from one week to the next
-   - [ ] Create new weeks for the admin
+ - [x] Being able to change from one week to the next
+   - [x] Create new weeks for the admin
    - [ ] Proper week redirection
      - [ ] Correctly handle non-existing week number
  - [x] Add introduction to the weekly truths
diff --git a/src/main.rs b/src/main.rs
index 6915128..655d9af 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -42,7 +42,11 @@ async fn index(mut db: Connection<Db>) -> Redirect {
 fn rocket() -> _ {
     rocket::build()
         .mount("/", FileServer::from(relative!("static_files")))
-        .mount("/", routes![index, vote::fetch_vote_data, vote::vote, truth::create_truth, truth::edit_truth, week::week, week::update_week, auth::login])
+        .mount("/", routes![index,
+            vote::fetch_vote_data, vote::vote,
+            truth::create_truth, truth::edit_truth,
+            week::week, week::update_week, week::set_last_week, week::create_week,
+            auth::login])
         .attach(database::stage())
         .attach(Template::fairing())
 }
diff --git a/src/week.rs b/src/week.rs
index cbc2e9e..6e6de1a 100644
--- a/src/week.rs
+++ b/src/week.rs
@@ -6,6 +6,7 @@ use rocket::response::Redirect;
 
 use rocket_db_pools::{sqlx, Connection};
 use rocket_dyn_templates::{context, Template};
+use sqlx::{Acquire, Executor};
 use crate::auth;
 use crate::auth::User;
 use crate::database::Db;
@@ -114,3 +115,98 @@ pub async fn update_week(week: u8, raw_intro: Form<String>,
 
     Redirect::to(uri!("/"))
 }
+
+#[post("/<week>/set_last")]
+pub async fn set_last_week(week: u8, mut db: Connection<Db>, cookies: &CookieJar<'_>) -> Redirect {
+    let user = auth::get_user(week, &mut db, cookies).await;
+    if !user.is_admin {
+        cookies.add(("toast_error", "Vous n'avez pas la permission de changer la semaine."));
+        return Redirect::to(uri!(week(week)));
+    }
+
+    let add_error_cookie = ||
+        cookies.add(("toast_error", "Erreur lors du changement d'état de la semaine."));
+
+    let db_transaction_connection = db.begin().await;
+    if db_transaction_connection.is_err() {
+        error!("Could not start database transaction for last week change : {:?}", db_transaction_connection.unwrap_err());
+        add_error_cookie();
+        return Redirect::to(uri!(week(week)));
+    }
+    let mut db_transaction = db_transaction_connection.unwrap();
+
+    // Remove the last flag from other weeks, if set.
+    match db_transaction.execute("UPDATE Weeks SET is_last_week = 0 WHERE is_last_week == 1;")
+        .await {
+        Ok(_) => debug!("Succesfully cleared is_last_week"),
+        Err(error) => {
+            error!("Failed to clear last week status : {error}");
+            add_error_cookie();
+            return Redirect::to(uri!(week(week)));
+        }
+    };
+
+    // We should set one week, if not there's something wrong : rollback.
+    if match sqlx::query("UPDATE Weeks SET is_last_week = 1 WHERE number == $1;")
+        .bind(week)
+        .execute(&mut *db_transaction)
+        .await {
+            Ok(result) => result.rows_affected(),
+            Err(error) => {
+                error!("Error while setting last week status : {error}");
+                0
+            }
+    } == 1 {
+        db_transaction.commit().await.unwrap_or_else(|error| {
+            error!("Error while committing week is last transaction : {error}");
+            add_error_cookie();
+        })
+    } else {
+        db_transaction.rollback().await.unwrap_or_else(|error| {
+            error!("Error while rolling back week is last transaction : {error}");
+            add_error_cookie();
+        })
+    }
+
+    Redirect::to(uri!(week(week)))
+}
+
+#[get("/<week>/create")]
+pub async fn create_week(week: u8, mut db: Connection<Db>, cookies: &CookieJar<'_>) -> Redirect {
+    let user = auth::get_user(week, &mut db, cookies).await;
+    if !user.is_admin {
+        cookies.add(("toast_error", "Vous n'avez pas la permission de changer la semaine."));
+        return Redirect::to(uri!(week(week - 1)));
+    }
+
+    let week_check: Result<Option<u8>, sqlx::Error> = sqlx::query_scalar("SELECT number from Weeks WHERE number == $1;")
+        .bind(week)
+        .fetch_optional(&mut **db)
+        .await;
+
+    if week_check.is_err() {
+        error!("Error while checking week existence : {:?}", week_check.unwrap_err());
+        cookies.add(("toast_error", "Erreur en vérifiant que la semaine n'existe pas déjà"));
+        return Redirect::to(uri!(week(week - 1)));
+    }
+
+    if week_check.unwrap().is_some() {
+        debug!("Week {week} already exists, not creating.");
+        return Redirect::to(uri!(week(week)));
+    }
+
+    match sqlx::query("INSERT INTO Weeks (number, is_last_week, rendered_text, raw_text) VALUES ($1, 0, \"\", \"\");")
+        .bind(week)
+        .execute(&mut **db)
+        .await {
+            Ok(_) => {
+                debug!("Succesfully created new week {week}");
+                Redirect::to(uri!(week(week)))
+            },
+            Err(error) => {
+                error!("Error while creating new week {week} : {error}");
+                cookies.add(("toast_error", "Erreur en créant la nouvelle selmaine."));
+                Redirect::to(uri!(week(week - 1)))
+            }
+    }
+}
diff --git a/static_files/style.css b/static_files/style.css
index 57eb5dc..f6cc018 100644
--- a/static_files/style.css
+++ b/static_files/style.css
@@ -47,6 +47,22 @@
     top: 25%;
 }
 
+.week_change:link, .week_change:visited {
+    color: black;
+    text-decoration: none;
+    transition: all .2s ease-in-out;
+}
+
+.week_change:hover, .week_change:focus {
+    color: mediumpurple;
+    text-shadow: 0 2px 2px slategray;
+}
+
+.week_change_hidden {
+    padding-left: 0.5eM;
+    padding-right: 0.5eM;
+}
+
 @media (orientation: portrait) {
     .truth_list {
         width: 60vw;
diff --git a/templates/index.html.tera b/templates/index.html.tera
index f3c3c42..cd11ae4 100644
--- a/templates/index.html.tera
+++ b/templates/index.html.tera
@@ -12,6 +12,30 @@
     <script defer="defer" type="text/javascript" src="/vote_chart.js"></script>
 </head>
 
+{#{% import "week_change_arrows" as week_macro %}#}
+{# For some reason the import does not work ? Figure it out at some point... #}
+{%- macro display(display_character, to, enabled) -%}
+    {%- set class = "week_change" -%}
+    {%- if enabled == true %}
+        {% set target = ("href=/" ~ to) %}
+    {%- else -%}
+        {% set class = class ~ " week_change_hidden" -%}
+        {% set target = "" %}
+    {%- endif -%}
+    <a {{ target }} class="{{ class }}">{%- if enabled == true -%}{{- display_character -}}{%- endif -%}</a>
+{%- endmacro display -%}
+
+
+{% set back_arrow_enabled = week_data.number > 1 %}
+{% set next_arrow_enabled = (week_data.is_last_week != true or user.is_admin == true) %}
+{% set next_arrow_href = (week_data.number + 1) %}
+{% if user.is_admin == true %}
+    {% set next_arrow_href = next_arrow_href ~ "/create" %}
+    {% set next_arrow_chara = '⥅' %}
+{% else %}
+    {% set next_arrow_chara = '⟹' %}
+{% endif %}
+
 <body>
 <div class="top_bar">
     <h1>{{ title }}</h1>
@@ -26,9 +50,18 @@
     {% endif %}
 </div>
 
-<h2>Semaine {{ week_data.number }}</h2>
+<h2>{{- self::display(display_character='⟸', to=(week_data.number - 1), enabled=back_arrow_enabled) }}
+    Semaine {{ week_data.number }}
+    {{- self::display(display_character=next_arrow_chara, to=next_arrow_href, enabled=next_arrow_enabled) -}}</h2>
 <div class="page_body">
     <div class="truth_list">
+        {% if user.is_admin == true and week_data.is_last_week != true %}
+            <form action="/{{ week_data.number }}/set_last" method="post">
+                <button>
+                    Définir comme dernière semaine active
+                </button>
+            </form>
+        {% endif %}
         <div class="week_intro">
             {{ week_data.rendered_text | safe }}
             {%- if user.is_admin == true -%}