https://www.physicsforums.com/threads/the-best-book-to-start-with-string-theory.446991/
B. Zwiebach, A First Course in String Theory
![](https://blog.yucas.net/wp-content/uploads/2021/05/image.png)
https://www.physicsforums.com/threads/the-best-book-to-start-with-string-theory.446991/
B. Zwiebach, A First Course in String Theory