Welcome.
Work of his hands. Department of the ITO, accordingly, knowledge is mainly in the technical fields, I would like to continue to grow in the field of business management in it, the goal is to become the Director of it. Advise what books to read in the field of management and accounting, personnel management, production management, etc. to improve knowledge in these areas.
PS ITSM is already investigating, but after reading Terry white, "What business wants from it", it seemed to me that ITSM is only a small and not the most important part of the knowledge and skills of the CIO.