Inc.com is always a good source of inspirations, so why don't you read this article by Zoë Henry on the top 5 industries by revenue in 2017
https://www.inc.com/zoe-henry/inc5000-2017-5-biggest-industries-revenue.html?cid=hmsub1
Inc.com is always a good source of inspirations, so why don't you read this article by Zoë Henry on the top 5 industries by revenue in 2017
https://www.inc.com/zoe-henry/inc5000-2017-5-biggest-industries-revenue.html?cid=hmsub1