diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -104,6 +104,8 @@ final class User extends ActiveRecord
 }
 ```
 
+For more information, follow [Create Active Record Model](docs/create-model.md).
+
 ## Usage in controler with DI container autowiring
 
 ```php
diff --git a/docs/create-model.md b/docs/create-model.md
new file mode 100644
index 000000000..791bea951
--- /dev/null
+++ b/docs/create-model.md
@@ -0,0 +1,291 @@
+# Create Active Record Model
+
+To create an Active Record model, you need to create a class that extends `Yiisoft\ActiveRecord\ActiveRecord` and define
+class properties, the table name and relations.
+
+## Properties
+
+### Dynamic properties
+
+Easiest way to define properties is to use dynamic properties. This way you don't need to define properties explicitly.
+
+```php
+use Yiisoft\ActiveRecord\ActiveRecord;
+
+/**
+ * Entity User.
+ *
+ * @property int $id
+ * @property string $username
+ * @property string $email
+ * 
+ * The properties in PHPDoc are optional and used by static analysis and by IDEs for autocompletion, type hinting, 
+ * code generation and inspection tools. This does not affect code execution.
+ **/
+#[\AllowDynamicProperties]
+final class User extends ActiveRecord
+{
+    public function getTableName(): string
+    {
+        return '{{%user}}';
+    }
+}
+```
+
+Now you can use `$user->id`, `$user->username`, `$user->email` to access the properties.
+
+```php
+$user = new User($db);
+
+$user->username = 'admin';
+$user->email = 'admin@example.net';
+
+$user->save();
+```
+
+Notes:
+- It needs to use the `#[\AllowDynamicProperties]` attribute to enable dynamic properties;
+- ❌ It does not use strict typing and can be a reason of hard-to-detect errors;
+- ❌ It is slower than explicitly defined properties, it is not optimized by PHP opcache and uses more memory;
+
+### Public properties
+
+To define properties explicitly, you can use `public` properties.
+
+```php
+use Yiisoft\ActiveRecord\ActiveRecord;
+
+/**
+ * Entity User.
+ **/
+final class User extends ActiveRecord
+{
+    public int $id;
+    public string $username;
+    public string $email;
+    public string $status = 'active';
+
+    public function getTableName(): string
+    {
+        return '{{%user}}';
+    }
+}
+```
+
+As with dynamic properties, you can use `$user->id`, `$user->username`, `$user->email` to access the properties.
+
+Notes:
+- ✔️ It allows to use strict typing and define default values for properties;
+- ✔️ It works faster than dynamic properties, optimized by PHP opcache and uses less memory;
+
+### Protected properties (recommended)
+
+To protect properties from being accessed directly, you can use `protected` properties.
+
+```php
+use Yiisoft\ActiveRecord\ActiveRecord;
+
+/**
+ * Entity User.
+ **/
+final class User extends ActiveRecord
+{
+    protected int $id;
+    protected string $username;
+    protected string $email;
+    protected string $status = 'active';
+
+    public function getTableName(): string
+    {
+        return '{{%user}}';
+    }
+    
+    public function getId(): int|null
+    {
+        return $this->id ?? null;
+    }
+    
+    public function getUsername(): string|null
+    {
+        return $this->username ?? null;
+    }
+    
+    public function getEmail(): string|null
+    {
+        return $this->email ?? null;
+    }
+    
+    public function setId(int $id): void
+    {
+        $this->setAttribute('id', $id);
+    }
+    
+    public function setUsername(string $username): void
+    {
+        $this->username = $username;
+    }
+    
+    public function setEmail(string $email): void
+    {
+        $this->email = $email;
+    }
+}
+```
+
+Now you can use `$user->getId()`, `$user->getUsername()`, `$user->getEmail()` to access the properties.
+
+```php
+$user = new User($db);
+
+$user->setUsername('admin');
+$user->setEmail('admin@example.net');
+
+$user->save();
+```
+
+Notes:
+- To access properties, you need to define getter and setter methods.
+- ✔️ It allows to use strict typing and define default values for properties;
+- ✔️ It allows to access uninitialized properties, using **null coalescing operator** `return $this->id ?? null;`
+- ✔️ It allows to reset relations when setting the property, using `ActiveRecordInterface::setAttribute()` method.
+
+### Private properties
+
+To use `private` properties inside the model class, you need to copy `getAttributesInternal()` and `populateAttribute()` 
+methods from the `ActiveRecord` class and adjust them to work with the `private` properties.
+
+```php
+use Yiisoft\ActiveRecord\ActiveRecord;
+
+/**
+ * Entity User.
+ **/
+final class User extends ActiveRecord
+{
+    private int $id;
+    private string $username;
+    private string $email;
+    private string $status = 'active';
+
+    public function getTableName(): string
+    {
+        return '{{%user}}';
+    }
+    
+    // Getters and setters as for protected properties
+    // ...
+
+    // Copied `getAttributesInternal()` and `populateAttribute()` methods from `ActiveRecord` class
+    protected function getAttributesInternal(): array
+    {
+        return get_object_vars($this);
+    }
+    
+    protected function populateAttribute(string $name, mixed $value): void
+    {
+        $this->$name = $value;
+    }
+}
+```
+
+Private properties have the same benefits as protected properties, and they are more secure.
+    
+### Magic properties
+
+You can also use magic properties to access properties.
+
+```php
+use Yiisoft\ActiveRecord\ActiveRecord;
+use Yiisoft\ActiveRecord\Trait\MagicPropertiesTrait;
+
+/**
+ * Entity User.
+ *
+ * @property int $id
+ * @property string $username
+ * @property string $email
+ * 
+ * The properties in PHPDoc are optional and used by static analysis and by IDEs for autocompletion, type hinting, 
+ * code generation and inspection tools. This does not affect code execution.
+ **/
+final class User extends ActiveRecord
+{
+    use MagicPropertiesTrait;
+
+    public function getTableName(): string
+    {
+        return '{{%user}}';
+    }
+}
+```
+
+You can use `$user->id`, `$user->username`, `$user->email` to access the properties as with dynamic properties.
+
+Notes:
+- It needs to use the `MagicPropertiesTrait` to enable magic properties;
+- Compared to dynamic properties, they are stored in the `private array $attributes` property;
+- ✔️ It allows to access relations as properties;
+- ❌ It does not use strict typing and can be a reason of hard-to-detect errors;
+- ❌ It is slower than explicitly defined properties, it is not optimized by PHP opcache and uses more memory.
+  In some cases it can be 100 times slower than explicitly defined properties;
+
+## Relations
+
+To define relations, use the `ActiveRecordInterface::relationQuery()` method. This method should return an instance of 
+`ActiveQueryInterface` for the relation. You can then define a getter method to access the relation.
+
+To get the related record, use the `ActiveRecordInterface::relation()` method. This method returns the related record(s)
+or `null` (empty array for `AbstractActiveRecord::hasMany()` relation type) if the record(s) not found.
+
+```php
+use Yiisoft\ActiveRecord\ActiveRecord;
+
+/**
+ * Entity User.
+ **/
+final class User extends ActiveRecord
+{
+    public int $id;
+    public string $username;
+    public string $email;
+    public int $profile_id;
+    
+    public function getTableName(): string
+    {
+        return '{{%user}}';
+    }
+
+    public function relationQuery(string $name): ActiveQueryInterface
+    {
+        return match ($name) {
+            'profile' => $this->hasOne(Profile::class, ['id' => 'profile_id']),
+            'orders' => $this->hasMany(Order::class, ['user_id' => 'id']),
+            default => parent::relationQuery($name),
+        };
+    }
+    
+    public function getProfile(): Profile|null
+    {
+        return $this->relation('profile');
+    }
+    
+    /** @return Order[] */
+    public function getOrders(): array
+    {
+        return $this->relation('orders');
+    }
+}
+```
+
+Now you can use `$user->getProfile()` and `$user->getOrders()` to access the relation.
+
+```php
+use Yiisoft\ActiveRecord\ActiveQuery;
+
+$userQuery = new ActiveQuery(User::class, $db);
+
+$user = $userQuery->where(['id' => 1])->onePopulate();
+
+$profile = $user->getProfile();
+$orders = $user->getOrders();
+```