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25 articles with between 300 and 600 words, including:

Airport Locksmiths
Are Bump Keys a Threat to Locksmiths?
Bank Locksmiths
Being a Woman Locksmith
Canadian Locksmith Associations
Connecting the Virtual World to Locksmiths

and more...

Teaching the locksmith craft can begin at a very young age.  When a child has an interest in the mechanics of things, in how things fit together and how they come apart, it can lead to a future with locks and other interesting mechanisms associated with locks.
The locksmith trade can be learned by experimenting, self-taught courses, apprenticeships, from a family member in the business, from videos, or through distance courses.  It takes a combination of these things to advance to the professional status.