diff --git a/needle/v1/collections/__init__.py b/needle/v1/collections/__init__.py
index 3f29ee6..8f25f63 100644
--- a/needle/v1/collections/__init__.py
+++ b/needle/v1/collections/__init__.py
@@ -3,7 +3,6 @@
 """
 
 from typing import Optional
-
 import requests
 
 from needle.v1.models import (
@@ -73,7 +72,7 @@ def create(self, name: str, file_ids: Optional[list[str]] = None):
             created_at=c.get("created_at"),
             updated_at=c.get("updated_at"),
         )
-
+    
     def get(self, collection_id: str):
         """
         Retrieves a collection by its ID.
@@ -114,6 +113,7 @@ def list(self):
             Error: If the API request fails.
         """
         resp = self.session.get(self.endpoint)
+        print(resp.json())
         body = resp.json()
         if resp.status_code >= 400:
             error = body.get("error")
@@ -131,6 +131,25 @@ def list(self):
             for c in body.get("result")
         ]
 
+    def identify_collection(self, collection_name: str) -> str:
+        """Get collection ID from name.
+        
+        Args:
+            collection_name: Name of the collection
+            
+        Returns:
+            Collection ID
+            
+        Raises:
+            ValueError: If collection name is not found
+        """
+        collections_list = self.list()
+        collection_info = {collection.name: collection.id for collection in collections_list}
+        
+        if collection_name not in collection_info:
+            raise ValueError(f"Collection '{collection_name}' not found")
+        return collection_info[collection_name]
+
     def search(
         self,
         collection_id: str,
diff --git a/needle/v1/collections/files.py b/needle/v1/collections/files.py
index 8a9fd5c..a524ecf 100644
--- a/needle/v1/collections/files.py
+++ b/needle/v1/collections/files.py
@@ -1,13 +1,15 @@
 """
 This module provides NeedleCollectionsFiles class for interacting with 
-Needle API's collectiton files endpoint.
+Needle API's collection files endpoint.
 """
 
 from dataclasses import asdict
+from typing import List, Optional
 import requests
 
 from needle.v1 import NeedleBaseClient, NeedleConfig
 from needle.v1.models import FileToAdd, Error, CollectionFile
+from time import sleep
 
 
 class NeedleCollectionsFiles(NeedleBaseClient):
@@ -47,6 +49,7 @@ def add(self, collection_id: str, files: list[FileToAdd]):
         req_body = {"files": [asdict(f) for f in files]}
         resp = self.session.post(endpoint, json=req_body)
         body = resp.json()
+        
         if resp.status_code >= 400:
             error = body.get("error")
             raise Error(**error)
@@ -80,9 +83,12 @@ def list(self, collection_id: str):
         Raises:
             Error: If the API request fails.
         """
-        endpoint = f"{self.collections_endpoint}/{collection_id}/files"
+        if collection_id is not None:
+            self.collection_id = collection_id
+        endpoint = f"{self.collections_endpoint}/{self.collection_id}/files"
         resp = self.session.get(endpoint)
         body = resp.json()
+        
         if resp.status_code >= 400:
             error = body.get("error")
             raise Error(**error)
@@ -102,3 +108,25 @@ def list(self, collection_id: str):
             )
             for cf in body.get("result")
         ]
+    
+    def delete(self, collection_id: str, file_ids: List[str]) -> None:
+        """Delete files from current collection.
+
+        Args:
+            collection_id (str): The ID of the collection from which files will be deleted.
+            file_ids (List[str]): List of file IDs to delete.
+            
+        Raises:
+            ValueError: If no collection ID is set.
+            Error: If the API request fails.
+        """
+        if not collection_id:
+            raise ValueError("No collection ID set")
+
+        endpoint = f"{self.collections_endpoint}/{collection_id}/files"
+        req_body = {"file_ids": file_ids}
+        resp = self.session.delete(endpoint, json=req_body)
+
+        if resp.status_code >= 400:
+            error = resp.json().get("error")
+            raise Error(**error)