Help Needed : Non Fiction Business Books - Overlap

Dear All

Thank you for your time, and I am looking for some advice.

I am in the process of writing 2 business books, on marketing. Key details:

a) Book 1 : Marketing for B2B (as an example, not the final title)
b) Book 2 : Marketing for ABC Industry (as an example; ABC Industry is a specific industry within B2B)

The rationale of having two books is that ABC Industry is highly regulated, and it needs industry specific narration & tips (which won't be applicable or useful for the entire B2B sector).

However, 65-70% of the book will have a similar core / overlap

I hope I have not explained my situation badly.

So my question is: Is this OK to do as per Amazon / Kindle norms?

These books will be 2 separate physical books, but looking to also have both on Kindle.

Warm Regards
Neha