How to start walking with poles? Nordic Walking - we dispel the first doubts ;)

It's a done deal!!! You start the adventure with Nordic Walking poles :D Congratulations.... only... what now? Where to look for an Instructor? Whether to buy poles in advance? How to dress and what to take with you for the first training? Also, how to exercise to lose weight - do you have to walk every day? Do the poles help with back pain?
These and other answers to your first questions right in this video ???

CONTENTS:
8:45 What kind of poles for Nordic Walking?
13:38 How to prepare for a class?
20:45 Alone or in a group?