"Go Up and Work With God" goes into much more detail about how you can learn to help yourself and others. While the the first book deals mainly with DNA activations, readings, and healings, the second book gives you details and insight into changing core beliefs, genetic history and soul programs, which are often the major causes of illnesses.
You can also learn how to see guardian angels, how to use manifesting techniques, guidelines on how to treat different specific illnesses and diseases.
If you read and enjoyed the first book, this is one you should not miss.