The education of Yorkshires, as for small dogs in general, does not really involve some of the imperatives related to the education of most large or medium-sized breeds, of the Malinois type for example...
A small York that doesn't listen is easier to pick up and put back on the right path than a Malinois (even though Yorkies are very fast !); that also makes their breed a perfect choice for a first canine experience.
Nevertheless, as they have a strong character, even a tendency to stubbornness
(little rascals who know very well what they want), the Yorkies need a clear and coherent education.
Firmness, if it becomes necessary, must on the other hand never lead to shout or use a threatening tone. Yorkshires remain very small dogs and do not forget that we are already giants by their side, who have no need to raise our voice to impress them; just be right in our demands and consistent over time.
In addition, the best education necessarily begins with observation : getting to know your York, what he likes, will help you considerably to make you be listened to.
Also give him the same unconditional love he offers you : he will be keen to please you if your relationship is based on trust and affection.
And if you are interested, go to my social networks to view some of my posts, coming soon, about the small education sessions that I do regularly with Fripouille and Coquine !