The document summarizes Julian Treasure's TED talk on effective speaking. It outlines the 7 deadly sins of speaking: gossip, judging, negativity, complaining, excuses, lying and dogmatism. It then provides tips for overcoming these sins through honesty, authenticity, integrity and love. Additional advice includes accessing tools to vary register, timbre, prosody, pace, pitch and volume. Speakers are encouraged to warm up their voice and consciously craft sound environments to connect with listeners.