I think this text should be very good for the beginners, and its concentrated on public policies (tax policies as well):

http://www.uib.cat/depart/deaweb/webpersonal/amedeospadaro/workingpapers/MicrosimulationBook.pdf

Thank you Krzysztof.

I will study it's papers.

Try microsimulation.org. Also, google CBOLT methodology and you will find some interesting materials about the Congressional Budget Office microsimulation model, which is a good benchmark.

Dear Eduardo,

They are very useful.

Thank you.

I would recommend that you explore a large selection of papers on methodology and applications of EUROMOD -- the European Tax-Benefit Microsimulation Model:

https://www.euromod.ac.uk/publications/subject/Microsimulation

Thank you dear Venelin.

I will study them.