diff --git a/exercises/information_retrieval/ej1/data/contacts/agenda.txt b/exercises/information_retrieval/ej1/data/contacts/agenda.txt
new file mode 100644
index 0000000..3d48b4b
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/contacts/agenda.txt
@@ -0,0 +1,8 @@
+unoarrobagmail.com
+Antonio Garcia
+dosarrobagmail.com
+Pedro Guerra
+tresarrobagmail.com
+Ana Montero
+cuatroarrobagmail.com
+Luis Pontes
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/data/emails/1.txt b/exercises/information_retrieval/ej1/data/emails/1.txt
new file mode 100644
index 0000000..f636f4d
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/emails/1.txt
@@ -0,0 +1,10 @@
+unoarrobagmail.com
+dosarrobagmail.com tresarrobagmail.com
+20101015
+Contrato de compraventa con la constructora
+Estimados socios:
+
+ya hemos firmado el contrato de compraventa con el cliente preferencial.
+Espero noticias vuestras.
+
+Un saludo,
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/data/emails/2.txt b/exercises/information_retrieval/ej1/data/emails/2.txt
new file mode 100644
index 0000000..e61b4dd
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/emails/2.txt
@@ -0,0 +1,10 @@
+dosarrobagmail.com
+unoarrobagmail.com
+20100410 
+Retraso en la firma del Contrato
+Estimados Antonio:
+
+agradezco mucho tus buenas noticias, aunque me temo que el documento que debe adjuntarse al contrato se va a retrasar
+unos dias.
+
+Un saludo,
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/data/emails/3.txt b/exercises/information_retrieval/ej1/data/emails/3.txt
new file mode 100644
index 0000000..5eb28d1
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/emails/3.txt
@@ -0,0 +1,10 @@
+tresarrobagmail.com
+unoarrobagmail.com dosarrobagmail.com
+20140225 
+Transferencia realizada
+Estimados socios:
+
+aunque el contrato no este legalizado aun, me he permitido hacer una transferencia por 
+la mitad del importe al contratista.
+
+Un saludo,
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/data/emails/4.txt b/exercises/information_retrieval/ej1/data/emails/4.txt
new file mode 100644
index 0000000..7a52648
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/emails/4.txt
@@ -0,0 +1,8 @@
+unoarrobagmail.com
+tresarrobagmail.com dosarrobagmail.com
+20110114 
+Lo comunicare al cliente
+Estimados socios:
+
+muchas gracias por las gestiones. se lo comunicare al cliente hoy mismo.
+Un saludo,
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/data/emails/5.txt b/exercises/information_retrieval/ej1/data/emails/5.txt
new file mode 100644
index 0000000..27c82c4
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/emails/5.txt
@@ -0,0 +1,9 @@
+unoarrobagmail.com
+cuatroarrobagmail.com
+20130912
+Contrato y Transferencia
+Estimado Luis:
+
+ya hemos realizado una transferencia a su cuenta por el importe establecido inicialmente.
+
+Un saludo,
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/data/emails/6.txt b/exercises/information_retrieval/ej1/data/emails/6.txt
new file mode 100644
index 0000000..d3cc028
--- /dev/null
+++ b/exercises/information_retrieval/ej1/data/emails/6.txt
@@ -0,0 +1,6 @@
+cuatroarrobagmail.com
+unoarrobagmail.com
+20131105
+Gracias
+
+Un saludo,
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej1/index/EmailIndex_8a9o49zh7h1n22jh.seg b/exercises/information_retrieval/ej1/index/EmailIndex_8a9o49zh7h1n22jh.seg
new file mode 100644
index 0000000..143dd62
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diff --git a/exercises/information_retrieval/ej1/index/EmailIndex_WRITELOCK b/exercises/information_retrieval/ej1/index/EmailIndex_WRITELOCK
new file mode 100755
index 0000000..e69de29
diff --git a/exercises/information_retrieval/ej1/index/_EmailIndex_1.toc b/exercises/information_retrieval/ej1/index/_EmailIndex_1.toc
new file mode 100644
index 0000000..8b124d6
Binary files /dev/null and b/exercises/information_retrieval/ej1/index/_EmailIndex_1.toc differ
diff --git a/exercises/information_retrieval/ej1/main.py b/exercises/information_retrieval/ej1/main.py
new file mode 100644
index 0000000..fcd8798
--- /dev/null
+++ b/exercises/information_retrieval/ej1/main.py
@@ -0,0 +1,193 @@
+import locale
+import re
+import urllib.request
+from datetime import datetime
+from pathlib import Path
+import tkinter as tk
+from tkinter import messagebox, ttk
+from tkinter import Tk
+from tkinter.scrolledtext import ScrolledText
+import shutil, re, os
+
+from whoosh.index import create_in,open_dir
+from whoosh.fields import Schema, TEXT, DATETIME, KEYWORD, ID, NUMERIC
+from whoosh.qparser import QueryParser
+from whoosh import index, qparser, query
+
+DATA_DIR = Path(__file__).parent / "data"
+CONTACTS_DIR = DATA_DIR / "contacts"
+EMAILS_DIR = DATA_DIR / "emails"
+INDEX_DIR = Path(__file__).parent / "index"
+CONTACTS = {}
+
+def create_index():
+    if not os.path.exists(INDEX_DIR):
+        os.mkdir(INDEX_DIR)
+    
+    if not index.exists_in(INDEX_DIR, indexname="EmailIndex"):
+        schema = Schema(sender=TEXT(stored=True),
+                        receiver=KEYWORD(stored=True),
+                        date=DATETIME(stored=True),
+                        subject=TEXT(stored=True),
+                        body=TEXT(stored=True,phrase=False), 
+                        file_name=ID(stored=True))
+        idx = create_in(INDEX_DIR, schema=schema, indexname="EmailIndex")
+        print(f"Created index: {idx.indexname}")
+    else:
+        print(f"An index already exists")
+
+def add_to_index(writer, path, file_name):
+    try:
+        f = open(path, "r")
+        sender = f.readline().strip()
+        receiver = f.readline().strip()
+        date_raw = f.readline().strip()
+        date = datetime.strptime(date_raw, '%Y%m%d')
+        subject = f.readline().strip()
+        body = f.read()
+        f.close()           
+                
+        writer.add_document(
+            sender=sender,
+            receiver=receiver,
+            date=date,
+            subject=subject,
+            body=body,
+            file_name=file_name
+        )
+    except:
+        messagebox.showerror(f"[ERR] adding {path}/{file_name}")
+
+def index_emails(delete = False):
+    if delete:
+        shutil.rmtree(INDEX_DIR)
+        os.mkdir(INDEX_DIR)
+        create_index()
+        
+    idx = index.open_dir(INDEX_DIR, "EmailIndex")
+    writer = idx.writer()
+    count = 0
+    for f in os.listdir(EMAILS_DIR):
+        if not os.path.isdir(EMAILS_DIR / f):
+            add_to_index(writer, EMAILS_DIR / f, f)
+            count += 1
+        
+    writer.commit()
+    return count
+
+def create_contacts():
+    try:
+        f = open(CONTACTS_DIR / "agenda.txt", "r")
+        email = f.readline()
+        while email:
+            name = f.readline()
+            CONTACTS[email.strip()] = name.strip()
+            email = f.readline()
+    except:
+        messagebox.showerror(f"[ERR] creating contacts list")
+
+def load(delete = False):
+    create_contacts()
+    return index_emails(delete)
+
+class EmailsUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("load"))
+        datos_menu.add_command(label="Listar", command=lambda: self.callback("list"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Cuerpo o Asunto", command=lambda: self.callback("search_body_or_subject"))
+        buscar_menu.add_command(label="Fecha", command=lambda: self.callback("search_date"))
+        buscar_menu.add_command(label="Spam", command=lambda: self.callback("search_spam"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, items, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for item in items:
+            row = " | ".join(str(item.get(field, "Unknown")) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message)
+
+def main():
+    locale.setlocale(locale.LC_TIME, "es_ES.UTF-8")
+    
+    create_index()
+    root = Tk()
+    ui = EmailsUI(root)
+
+    def handle_action(action):
+        match(action):
+            case "load":
+                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
+                if resp:
+                    recipes_count = load(True)
+                    ui.info(f"Se han indexado {recipes_count} emails")
+            case "list":
+                ix = open_dir(INDEX_DIR, "EmailIndex")
+                with ix.searcher() as searcher:
+                    emails = searcher.search(query.Every(), limit=None)
+                    print(emails)
+                    ui.show_list(emails, ["sender", "receiver", "name", "subject", "body"])
+            # buscar con queries y tal...
+           
+    ui.callback = handle_action
+    root.mainloop()
+    
+if __name__ == "__main__":
+    main()
+    
\ No newline at end of file
diff --git a/exercises/information_retrieval/ej4/main.py b/exercises/information_retrieval/ej4/main.py
index 59e73a9..7078603 100644
--- a/exercises/information_retrieval/ej4/main.py
+++ b/exercises/information_retrieval/ej4/main.py
@@ -17,7 +17,7 @@ from whoosh import index, qparser, query
 
 BASE_URL = "https://recetas.elperiodico.com"
 RECIPES_URL = BASE_URL + "/Recetas-de-Aperitivos-tapas-listado_receta-1_1.html"
-DATA_DIR = Path(__file__).parent.parent / "index"
+DATA_DIR = Path(__file__).parent / "index"
 
 def init_ssl():
     import os, ssl