Books on energy

What are the best books on energy work?

Get the first volume. Its foundation for all tai chi. then i recommend Tai Chi Changes: 64-Posture Taijiquan Form Based on the I Ching by stuart olsen if you want to learn moving mediation. It’s not short or long form tai chi. It’s just right in the middle and incorporate i ching arrangement. It’s not a quick fix. It do require discipline to learn.

Anything by Robert Bruce is excellent.