If you have an interest in running a campaign set in Eberron or if you're like me and just love the setting, I cannot recommed this book enough. The text is clear and easy to read and the art is stunning. Although mechanically Exploring Eberron is designed for D&D 5e, Baker gives clear examples of how content from earlier editions can be seamlessly integrated into a 5e campaign. Of particular interest are the subclasses--I hope one day I'll have a chance to play a Kalashtar mind domain cleric!
[5 of 5 Stars!]