All too often we hear a lot about lead generation, and not enough about lead nurturing. And while a strong focus on attracting quality leads is a good start, without lead nurturing those leads are almost worthless. Lead nurturing is the process by which leads are converted into customers, making it an essential part of any sales or lead generation process. Lead nurturing can take many forms, but the hardest working and most effective sales tool is typically a lead nurturing email series. The content may vary a bit by industry, but we’ve identified four key lead nurturing emails you need to send to start converting leads into sales.