TIM-8301 V4

Warsinske, J., Graff, M., Henry, K., Hoover, C., Malisow, B., Murphy, S., Oakes, C.P., Pajari, G., Parker, J.T., Seidl, D., & Vasquez, M. (2019). The official (ISC) 2 guide to the CISSP CBK Reference (5th ed.). Wiley.
Read Chapter 2 - Domain 2: Asset Security.
This chapter discusses the importance of creating an asset inventory and the strategy of identification, categorization, securing, and monitoring of those assets using best policies, practices, and methods.

National Institute of Standards and Technology National Cybersecurity Center of Excellence. (2018, September). IT asset management NIST SP 1800-5 practice guide. NIST.
The SP 1800-5b: Approach, Architecture, and Security Characteristics guide (Volume B) provides valuable information on approaching IT asset management from a planning perspective.