Expression: (As) A work of...

[Spdazero]

hello.
why is the following sentence right: 'A work of fiction, it has at its
heart this fact...' but 'As a work of fiction, it has at its
heart this fact...' not?
thanks.

[Yankee]

Hi Spdazero

'A work of fiction, it has at its heart this fact...' ==> This means 'It is a work of fiction, and it has at its heart this fact...'

'As a work of fiction, it has at its heart this fact...' ==> This suggests 'Because it is a work of fiction, it has at its heart this fact...'
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