This was the year that ‘The Girl on the Train’ was a runaway best-seller.

In her own words, author Paula Hawkins tells us how 2015 changed her life.

We said goodbye to Don Draper and hello to Adele.

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Credit: AP Photo/Matt Dunham

Doughnuts were licked, and dinos were vanquished.

So join us as we revisit the years most unforgettable momentsfor better or worse.

(By the time were through, maybe well finally have our invitation to join Taylors #squad.)

See moreBest of 2015 coverage.

Parts of thisextraordinary yearstill seem quite unreal to me.

Im now financially secure, which is a very pleasant change.

Its a different thing when one becomes famous as, say, an actress, because youre instantly recognizable.

Ive been astounded bythe speed with which the film got going.

When it was optioned, everyone said, Itll be years; they might not even do it.

And in less than a year I found myself visiting the movie set.

They actually made Emily Blunt look like a woman whos let herself get into a complete mess.

I dont know that she ever could be ugly, shes got such a beautiful bone structure.

But she looked really authentic.

Its strange to see people acting out the things you thought up.

You do feel vulnerable, though, with people knowing how you think.

Ive even seen people reading my book a couple times on the train.

I kept trying to sneak glances at one woman to see if she looked interested or bored.

She probably thought I was some weirdo.

As told to Isabella Biedenharn.