QFT

Arun has been dithering about renewing his study of Quantum Field Theory, after a dozen or so years on the sidelines. For me, it has been more like several decades, so not only have I forgotten a lot, but most of the new ideas hadn't even been developed back in those stone ages. Anyway, I've started furtively glancing into Peskin and Schroeder from time to time, and really think I ought to learn a little. Arun, however, is considering the online text Fields by W. Siegel.

Has anybody else read/used it? Have an opinion?

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