Co-Parenting is hard. It gets harder when you're trying to work with someone who refuses to work with you. In this course, free with a Curious membership (it's an awesome site - just check it out), you'll learn everything from the basics of co-parenting all the way through to a quiz to determine what type of difficult personality your ex has and how to deal with it.
Communication is the #1 most important tool you have when it comes to ensuring your children transition and recover from the divorce of their parents and/or blending of families in a healthy way. In the Communication Toolkit, found on the Gumroad site (again, amazing site), you'll find 11 different lessons for you to pick and choose from. Purchase to keep the lessons forever or simply rent for a quick lesson in how to handle a tough communication situation.