The general rule is the thinner the sole the more conservative and formal the shoe. For career wear, when in doubt, always choose the classic pump with a 1 1/2 – 3 inch heel and a thin sole. You can never go wrong with this style and will always make a great impression at work. However, if you like the platform styles and it fits with your company’s contemporary culture, I would suggest that the classic style pump in a neutral colour with a platform sole is your best choice. For a great example see my post: https://www.personalimpact.ca/2010/09/don’t-believe-…thing-you-read/