The topic is too broad for a “best,” but here are some really practical places to start: Sales for engineers: https://hackernoon.com/sales-101-for-engineers-6f

The topic is too broad for a “best,” but here are some really practical places to start: Sales for engineers: https://hackernoon.com/sales-101-for-engineers-6fcd1b49cffa https://hackernoon.com/sales-101-for-engineers-6fcd1b49cffa Enterprise sales, which is the process that people often think of when they say “sales”: https://training.kalzumeus.com/newsletters/archive/enterprise_sales https://training.kalzumeus.com/newsletters/archive/enterpris... SaaS: https://stripe.com/en-US/atlas/guides/business-of-saas https://stripe.com/en-US/atlas/guides/business-of-saas