This one is free from tomorrow until I believe the 13th of May of this year. Of course unless you have kindleunlimited in which case: it is free forever.
this publication is concerning communication basic advancement and quickly; especially concerning the focus of topic: for-the-police.
cited: amazon dot com as accessed on 5 dot 8 dot 16
I hope it is helpful (for you); as it has been and I’m sure will be; more-so, for me.
Enjoy! Below is the link, to: