I am looking for the Special Proofs. Here is a reference from MSE. Motivation for/history of Jacobi's triple product identity
I also know that a simple proof via Functional Equation from the book of An Invitation to q-series Hei-Chi-Chan. it has a very nice explanation , step by step. I also have learnt that Zeilberg's recursive proof.
What are the other interesting proofs about this identity you know? ? Thanks for your answers.