Footpath Flowers by JonArno Lawson and Sydney Smith
Published by Walker Books. A fascinating wordless book, and probably one for older readers as it uses detail and palette change as an intrinsic part of its meaning, consisting only of small, subtle actions and touching on sensitive issues.
Once read, the art style and colour plan of the book can be seen to have been carefully chosen to express its intent. It employs an old visual cliche of a "colourless" world (an urban one at that) that is progressively alleviated by colour, but the use is so poetic and heartfelt that it earns its effect. The book is well laid out and crammed with important detail, because the details are important. An aesthetically and emotionally touching book.