Very helpful. For an inexperienced DM like myself this has been as useful as the core rule books. See Likes and Dislikes for specifics.<br><br> <b>LIKED</b>: The new ideas. Tips on how to bring NPCs to life by giving them backgrounds, motivations, and secrets. Tips on how to "act" an NPCs part. The tables in the appendix are useful "as is" and act as a spring-board for new ideas.<br><br><b>DISLIKED</b>: Didn't seem to explain the NPC character sheets at the end of the PDF or directly relate them to the content. A few more concrete examples in each section would be nice.<br><br><b>QUALITY</b>: Excellent<br><br><b>VALUE</b>: Very Satisfied<br>