While many of us might fear public speaking even just at a work morning tea, stepping up to the job can make or break your career, especially for those at the top.Dr Lucinda Holdforth knows a thing or two about speeches. She has been writing them for corporate leaders and politicians for more than 25 years.Lucinda dissects some well-known addresses to highlight what we can learn.And executive coach Amanda Blesing shares the biggest mistake she has made early in her career and the crucial lesson she learnt from it (spoiler alert: don't leave careers for love).