ABC T-Rex by Bernard Most

From chapters.ca:
This is a truly fun alphabet book, with humour, continuity, lots of eating and every kid's favourite creature - a Tyrannosaurus Rex! This particular dinosaur gets right into the action by beginning to eat all the letters, starting with A and ending, very appropriately, with Z. And each letter just makes him hungrier than the last! With witty sentences such as "K tastes great with ketchup" and "O was oh, so good," the talented Bernard Most leads kids through a refreshing take on the traditional alphabet book. Each page in ABC T-Rex also makes a point of corresponding to the appropriate letter, so that children can use their skills to identify objects. And after all that eating - and a much- needed nap - kids will find a list in the back of the book with more fun words that begin with each letter of the alphabet.