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Just to let you know, if you buy something featured here, Mashable might earn an affiliate commission. It's time to give that ol' brain of yours a thorough dusting-off, so to speak: Through the Full Neuro-Linguistic Programming (NLP) Diploma Course, you might be able to hack your way to an improved way of thinking. NLP, in case you haven't heard, is a set of rules and techniques designed to help you shape your personal psychology and achieve self-actualization. Some see it as pseudo-science, while others swear by it. Either way, the idea is that you can train your brain to eliminate phobias, tweak bad habits, and even gain a deeper understanding of others' body language -- skills that are beneficial in the workplace, your social life, and beyond.