Aside from being a great instructor, Mike is a thoughtful and kind person. His course truly encompasses the essentials of PostGIS AND includes other information you didn't even know that you wanted to know. This course is wonderful if you are new to the SQL or PostGIS world. He takes an intimidating task and breaks it down into digestible chunks. There is useful information for intermediate and advanced PostGIS users, too. Thank you, Mike. And, good luck future PostGIS students!