I need to design a new book cover for that book, but not just a book cover with a burning book. It must be something deeper and meaningful. Can you please explain your suggestion, I'm having trouble trying to think of a new cover.
Another good idea is to depict the setting of one of Bradbury's allusions in the work, derived from Matthew Arnold's "Dover Beach" (last two stanzas):
The Sea of Faith
Was once, too, at the full, and round earth's shore
Lay like the folds of a bright girdle furled.
But now I only hear
Its melancholy, long, withdrawing roar,
Retreating, to the breath
Of the night-wind, down the vast edges drear
And naked shingles of the world.
Ah, love, let us be true
To one another! for the world, which seems
To lie before us like a land of dreams,
So various, so beautiful, so new,
Hath really neither joy, nor love, nor light,
Nor certitude, nor peace, nor help for pain;
And we are here as on a darkling plain
Swept with confused alarms of struggle and flight,
Where ignorant armies clash by night.
You could depict the scene of two ignorant armies fighting at night on the beach with the Sea of Faith raging in the distance. Because it is night, there is considerable bloodshed, as the two armies kill each other because they cannot see.
Fahrenheit 451 is set up in similar fashion: the Book People battle the Censors. Instead of swords and shields, they use fire and books. This highly allegorical cover would attract a wide range of readers.
I am always struck by how meaningless and thoughtless the society becomes when I read Fahrenheit 451. Think about how you might create an image that has a hollow head or brain space. Mildred might be the character that most embodies this thoughtlessness. You could maybe put a device in her ear. I wonder if you could show how what she sees and hears controls her and somehow that she is no longer able to think for herself. Consider thinking about how a puppet works, but maybe make this more mechanical. These are just ideas and you might take a piece or two and import it directly into the image you end up with.
Maybe you have thoughts coming out of a person's head and those are burning ...
This is a good assignment. If the theme I have suggested doesn't work for you, take a moment to try to sum up the lesson of the book for you in a sentence. Then, illustrate.