Which E.E. Cummings book is this poem in?

That poem is included in a number of books. It was also published by itself in a single, large format, illustrated volume.

You'll find this poem in any number of cummings' collections, as well as "My Heart Has Wings," "If I Never Say More," and "Messages of Love." It is popular in collections of love poems and inspirational poems.

i carry your heart with me(i carry it in

my heart)i am never without it(anywhere

i go you go,my dear; and whatever is done

by only me is your doing,my darling)

i fear

no fate(for you are my fate,my sweet)i want

no world(for beautiful you are my world,my true)

and it's you are whatever a moon has always meant

and whatever a sun will always sing is you

here is the deepest secret nobody knows

(here is the root of the root and the bud of the bud

and the sky of the sky of a tree called life;which grows

higher than the soul can hope or mind can hide)

and this is the wonder that's keeping the stars apart

i carry your heart(i carry it in my heart)

Ee Cummings Books