The phrase "a classic example of how to" is correct and usable in written English.
It can be used when illustrating a well-known or exemplary method for accomplishing a task or demonstrating a concept.
Example: "This case study serves as a classic example of how to effectively implement a marketing strategy."
Alternatives: "a prime illustration of how to" or "a quintessential demonstration of how to".
Still, the 2011 edition of the Department of City Planning's "Zoning Handbook" (New York City Department of City Planning, $35) is a classic example of how to demystify government and make the bureaucracy more accessible.
The black and red of his About Two Squares (1922) are not trying to be anything other than deep black and brilliant red, and they succeed triumphantly, just as they do in his powerful propaganda poster Beat the Whites with the Red Wedge of 1919, a classic example of how to make abstraction instantly readable.
And he believes the government needs to intervene in the development of players - citing Germany as a classic example of how to nurture young talent.
It truly is one of the most horrifying movies to behold and this moment of anticipation is a classic example of how to manipulate the audience by building tension through anticipation.
The Somalia episode has gone down in the Pentagon's strategic annals as a classic example of how not to conduct an international operation.
This is a classic example of how politicians pick the best statistic to make their case.
It's an ambitious scheme to transform the benefits system but Universal Credit has begun to look like a classic example of how big IT projects go wrong.
Netflix provides a classic example of how a corporation must assess whether it needs to move beyond its core business model and how tricky the timing can be.
Because of James's authorial control of his characters, she considers him to be a classic example of how a novelist represents consciousness.
The health care overhaul provides a classic example of how the impact of a law depends on regulations needed to interpret it.
