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So, I am a medical physics student with a long term goal of learning QFT. Unfortunately, I do not have the time to take courses that would build up to QFT. I have taken the time to search for many textbooks on QFT, all of which require much more mathematical and physical knowledge than I have at the moment. My background is: Calc 1-3 and DiffEQ, Linear Algebra, Freshman Physics, Electromagnetism (ala Griffiths) and Quantum Mechanics (also ala Griffiths).
I am planning on reading Merzbacher and Sakurai MQM, and then Sakurai AQM. Will this be enough to prepare me for Peskin? I have taken the time to read through many different questions on the subject, and I have come to the conclusion that none of them address my needs. I suspect there are many people who will also be interested in such a self-contained study "path" to QFT, instead of merely asking for one textbook to rule them all. And many of these people are at the point I am now, having just finished regular QM ala Griffiths. I am hoping for the smoothest path to QFT. Each textbook should not assume more knowledge than contained in the last ones.