A 5-minute read. If there’s one thing you need to know about good marketing practice, it’s that good marketers test their work. If you’re a business owner or marketer you should be testing everything that goes in front of a user. Whether you’re looking to increase revenue, sign-ups, conversions, social shares or engagement, etc. A/B testing and optimization can help you achieve the best results. There a good joke in the marketing world the …