When Giants Come to Play by Andrea Beaty, illustrated by Kevin Hawkes

From chapters.ca:
A whimsical story of imagination and friendship, illustrated by one of the most respected illustrators of our time. In this beautifully written, lyrical text, a little girl named Anna enjoys a day with some unusual playmates, a pair of giants who visit only "when the sun shines just so and the wind blows like this and that on its way to somewhere else." The giants adapt familiar childhood games to suit their size, giving acclaimed illustrator Kevin Hawkes opportunities to play with scale, and the premise is the perfect platform for his quintessential, "larger- than- life" characters. From "Clifford, the Big Red Dog" to "Danny and the Dinosaur," the idea of a giant friend who helps you do things you couldn't do yourself is a classic, much- loved children's book theme. Humorous and a little wistful, When Giants Come to Play is a celebration of the power of imagination and friendship that could become a classic.