diff --git a/postman/collections/Book API/.resources/definition.yaml b/postman/collections/Book API/.resources/definition.yaml
new file mode 100644
index 0000000..bd706d3
--- /dev/null
+++ b/postman/collections/Book API/.resources/definition.yaml	
@@ -0,0 +1,8 @@
+$kind: collection
+name: Book API
+description: 'CRUD API for managing books. Base URL: http://localhost:3000'
+variables:
+  - key: baseUrl
+    value: 'http://localhost:3000'
+  - key: bookId
+    value: ''
diff --git a/postman/collections/Book API/API Root.request.yaml b/postman/collections/Book API/API Root.request.yaml
new file mode 100644
index 0000000..7a067cf
--- /dev/null
+++ b/postman/collections/Book API/API Root.request.yaml	
@@ -0,0 +1,6 @@
+$kind: http-request
+name: API Root
+method: GET
+url: '{{baseUrl}}/'
+description: 'Get API info and available routes'
+order: 2000
diff --git a/postman/collections/Book API/Books/.resources/definition.yaml b/postman/collections/Book API/Books/.resources/definition.yaml
new file mode 100644
index 0000000..8acd608
--- /dev/null
+++ b/postman/collections/Book API/Books/.resources/definition.yaml	
@@ -0,0 +1,3 @@
+$kind: collection
+name: Books
+description: 'Book CRUD endpoints'
diff --git a/postman/collections/Book API/Books/Create Book.request.yaml b/postman/collections/Book API/Books/Create Book.request.yaml
new file mode 100644
index 0000000..cf2fbdf
--- /dev/null
+++ b/postman/collections/Book API/Books/Create Book.request.yaml	
@@ -0,0 +1,14 @@
+$kind: http-request
+name: Create Book
+method: POST
+url: '{{baseUrl}}/api/v1/books'
+description: 'Create a new book. Required fields: title (string), author (string). Optional: year (integer).'
+order: 3000
+body:
+  type: json
+  content: |-
+    {
+      "title": "The Great Gatsby",
+      "author": "F. Scott Fitzgerald",
+      "year": 1925
+    }
diff --git a/postman/collections/Book API/Books/Delete Book.request.yaml b/postman/collections/Book API/Books/Delete Book.request.yaml
new file mode 100644
index 0000000..2b89577
--- /dev/null
+++ b/postman/collections/Book API/Books/Delete Book.request.yaml	
@@ -0,0 +1,6 @@
+$kind: http-request
+name: Delete Book
+method: DELETE
+url: '{{baseUrl}}/api/v1/books/{{bookId}}'
+description: 'Delete a book by ID'
+order: 5000
diff --git a/postman/collections/Book API/Books/Get Book.request.yaml b/postman/collections/Book API/Books/Get Book.request.yaml
new file mode 100644
index 0000000..ebe8c22
--- /dev/null
+++ b/postman/collections/Book API/Books/Get Book.request.yaml	
@@ -0,0 +1,13 @@
+$kind: http-request
+name: Get Book
+method: GET
+url: "{{baseUrl}}/api/v1/books/{{bookId}}"
+description: Retrieve a single book by ID
+scripts:
+  - type: afterResponse
+    code: |-
+      pm.test("Status code is 200", function () {
+          pm.response.to.have.status(200);
+      });
+    language: text/javascript
+order: 2000
diff --git a/postman/collections/Book API/Books/List Books.request.yaml b/postman/collections/Book API/Books/List Books.request.yaml
new file mode 100644
index 0000000..02432f8
--- /dev/null
+++ b/postman/collections/Book API/Books/List Books.request.yaml	
@@ -0,0 +1,6 @@
+$kind: http-request
+name: List Books
+method: GET
+url: '{{baseUrl}}/api/v1/books'
+description: 'Retrieve all books'
+order: 1000
diff --git a/postman/collections/Book API/Books/Update Book.request.yaml b/postman/collections/Book API/Books/Update Book.request.yaml
new file mode 100644
index 0000000..289ca10
--- /dev/null
+++ b/postman/collections/Book API/Books/Update Book.request.yaml	
@@ -0,0 +1,14 @@
+$kind: http-request
+name: Update Book
+method: PUT
+url: '{{baseUrl}}/api/v1/books/{{bookId}}'
+description: 'Update an existing book by ID. Fields: title, author, year (all optional in update).'
+order: 4000
+body:
+  type: json
+  content: |-
+    {
+      "title": "The Great Gatsby (Updated)",
+      "author": "F. Scott Fitzgerald",
+      "year": 1925
+    }
diff --git a/postman/collections/Book API/Health Check.request.yaml b/postman/collections/Book API/Health Check.request.yaml
new file mode 100644
index 0000000..80edf2e
--- /dev/null
+++ b/postman/collections/Book API/Health Check.request.yaml	
@@ -0,0 +1,6 @@
+$kind: http-request
+name: Health Check
+method: GET
+url: '{{baseUrl}}/health'
+description: 'Check if the API server is running'
+order: 1000