Louis - Night Salad was reviewed in The Libary Journal in the US on October 29th:
A dream-quest theme persists throughout this colorful book [Louis - Night Salad], which brings to mind many classic, if somewhat less unsettling, adventures: Harold and the Purple Crayon and Where the Wild Things Are. Established fans will delight in this volume; like Louis, new readers will enter the story perplexed but exit with joy. -- John Gehner, Library Journal
You can read the full review here.
And The Big Issue has chosen Louis - Night Salad as their Big Pick of the week in Books, giving it a full page, in their Scottish and Welsh editions on November 1st, and the English edition will feature it on November 8th!