NIST and ISO

Answer:

NIST and ISO frameworks in fact complement each other. While NIST standards provide detailed guidance on controls implementation, ISO management standards provide guidance to ensure the implemented controls support the main organization's objectives, and are periodically reviewed, corrected and improved.

These articles will provide you further explanation about NIST and ISO:
- How to use the NIST SP800 series of standards for ISO 27001 implementation https://advisera.com/27001academy/blog/2016/05/02/how-to-use-the-nist-sp800-series-of-standards-for-iso-27001-implementation/
- How to use NIST SP 800-53 for the implementation of ISO 27001 controls https://advisera.com/27001academy/blog/2016/05/10/how-to-use-nist-sp-800-53-for-the-implementation-of-iso-27001-controls/