I can't remember now which one I read first... but the pictures drew me to the story (no pun intended) and the story helped make me a reader.
The 40th Anniversary edition of LAD: A DOG by Albert Payson Terhune w/ the illustrations by Sam Savitt. This version was first published in 1959.. and is still in print.
Detail showing house:
Here's Lad bored at the dog show... read the book to find out what happens AFTER he wins... (this illustrations shows the dogs "Benched"... back in the 1920s, dogs had to stay at the show all day.)