Jack Gabriel gorges on six international picture books from Walker Books and Gecko Press, from France, the UK and the US, finding something to recommend about each and every one. Warning: get your wallet ready. Like any good smorgasbord, this sampling of picture books spans a spectrum of flavour and form. Having all six spread enticingly before me on the dining room table made the task of choosing the first to digest all the more difficult. But like all good multi-course meal