diff --git a/apps/books/models.py b/apps/books/models.py
index 6b20219..620dd50 100644
--- a/apps/books/models.py
+++ b/apps/books/models.py
@@ -1 +1,146 @@
-# Create your models here.
+from django.db import models
+from django.contrib.auth import get_user_model
+from django_extensions.db.models import TimeStampedModel
+
+User = get_user_model()
+
+
+class Publisher(models.Model):
+    name = models.CharField(
+        "Название издательства",
+        max_length=255,
+    )
+    website = models.URLField(
+        "Сайт издательства",
+        max_length=255,
+        blank=True,
+    )
+
+    class Meta:
+        verbose_name = "Издательство"
+        verbose_name_plural = "Издательства"
+
+    def __str__(self):
+        return self.name
+
+
+class Author(models.Model):
+    first_name = models.CharField(
+        "Имя автора",
+        max_length=100,
+    )
+    last_name = models.CharField(
+        "Фамилия автора",
+        max_length=100,
+    )
+    bio = models.TextField(
+        "Биография",
+        blank=True,
+    )
+
+    class Meta:
+        verbose_name = "Автор"
+        verbose_name_plural = "Авторы"
+
+    def __str__(self):
+        return f"{self.first_name} {self.last_name}"
+
+
+class Tag(models.Model):
+    name = models.CharField(
+        "Название тега",
+        max_length=100,
+        unique=True,
+    )
+    slug = models.SlugField(
+        "URL-имя",
+        max_length=100,
+        unique=True,
+    )
+    color = models.CharField(
+        "Цвет",
+        max_length=20,
+    )
+
+    class Meta:
+        verbose_name = "Тег"
+        verbose_name_plural = "Теги"
+
+    def __str__(self):
+        return self.name
+
+
+class Book(TimeStampedModel):
+    title = models.CharField(
+        "Название книги",
+        max_length=255,
+    )
+    description = models.TextField(
+        "Описание книги",
+    )
+    published_at = models.DateField(
+        "Дата публикации",
+    )
+    isbn_code = models.CharField(
+        "ISBN",
+        max_length=20,
+        unique=True,
+    )
+    total_pages = models.IntegerField(
+        "Количество страниц",
+    )
+    cover_image = models.URLField(
+        "Обложка книги",
+        max_length=255,
+    )
+    language = models.CharField(
+        "Язык",
+        max_length=50,
+    )
+
+    author = models.ManyToManyField(
+        Author,
+        verbose_name="Авторы",
+        related_name="books",
+    )
+    publisher = models.ForeignKey(
+        Publisher,
+        verbose_name="Издательство",
+        on_delete=models.CASCADE,
+        related_name="books",
+    )
+    tags = models.ManyToManyField(
+        Tag,
+        verbose_name="Теги",
+        related_name="books",
+    )
+
+    class Meta:
+        verbose_name = "Книга"
+        verbose_name_plural = "Книги"
+
+    def __str__(self):
+        return self.title
+
+
+class Comment(TimeStampedModel):
+    text = models.TextField(
+        "Комментарий",
+    )
+
+    user = models.ForeignKey(
+        User,
+        verbose_name="Пользователь",
+        on_delete=models.CASCADE,
+        related_name="comments",
+    )
+    book = models.ForeignKey(
+        Book,
+        verbose_name="Книга",
+        on_delete=models.CASCADE,
+        related_name="comments",
+    )
+
+    class Meta:
+        verbose_name = "Комментарий"
+        verbose_name_plural = "Комментарии"
diff --git a/config/settings.py b/config/settings.py
index 507d928..525ed9b 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -15,7 +15,6 @@
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/
 
@@ -27,7 +26,6 @@
 
 ALLOWED_HOSTS = []
 
-
 # Application definition
 
 INSTALLED_APPS = [
@@ -38,6 +36,7 @@
     "django.contrib.messages",
     "django.contrib.staticfiles",
     "apps.books.apps.BooksConfig",
+    "django_extensions",
 ]
 
 MIDDLEWARE = [
@@ -69,7 +68,6 @@
 
 WSGI_APPLICATION = "config.wsgi.application"
 
-
 # Database
 # https://docs.djangoproject.com/en/5.2/ref/settings/#databases
 
@@ -80,7 +78,6 @@
     }
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/5.2/ref/settings/#auth-password-validators
 
@@ -99,7 +96,6 @@
     },
 ]
 
-
 # Internationalization
 # https://docs.djangoproject.com/en/5.2/topics/i18n/
 LANGUAGE_CODE = "en"
@@ -111,7 +107,6 @@
 USE_I18N = True
 USE_TZ = True
 
-
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/5.2/howto/static-files/
 
diff --git a/requirements.txt b/requirements.txt
index 1e8c9b5..05b906a 100644
Binary files a/requirements.txt and b/requirements.txt differ