(1) https://books.google.co.in/books?id=c6d8EPYHn1EC&printsec=frontcover&redir_esc=y#v=onepage&q&f=false

(2) https://books.google.co.in/books?id=ZWQYy-4aQLQC&printsec=frontcover&redir_esc=y#v=onepage&q&f=false

(3) https://www.springer.com/gp/book/9781461344186

Guidelines for XRF Analysis.  Setting up programmes for WDXRF and EDXRF by James Willis, Clive Feather and Ken Turner, 2014.

XRF in the Workplace: A Guide to Practical XRF Spectrometry by James Willis, Ken Turner and Gary Pritchard, 2011.

Handbook of X-Ray Spectrometry: Methods and Techniques (Practical Spectroscopy, Vol 14)

If you want to really deep-dive into XRF spectromery in general, then my go-to book is the Bertin one:

Principles and Practice of X-Ray Spectrometric Analysis: https://www.springer.com/gp/book/9781461344186

The ones cited in the other posts are very good too.

If you can use an X-ray fluorescence spectrometer, books are not needed for a while. The manual of the spectrometer is the best guide.

For a beginner I would recommend these 2 books:

https://fluxana.com/downloads/books

We also have a small free course for sample preperation on www.fluxaminar.com. If you need more information don't hesitate to contact me.