Understanding Scattering Theory: Seeking Easy-to-Read References

[Karmerlo]

Currently, I am combating against the "Scattering theory" with J J Sakurai’s Textbook.
The Lippman- Schwinger Equation, S matrix, T matrix, Optical Theorem,...

But I find the explanation in Sakurai's book is not very clear or pedagogical. I want to find some easy-to-read references to have a better understanding of it.

Any recommendations? Thank you very much.

 

[matonski]

I love this book. I used it as a supplement during a second semester QM course that used Sakurai. I still read it now for fun.