Is your kid a Harry Potter fan? Even if he/she is not, then also you could start by giving these books and I am sure he/she will get hooked to the books. Kids love the whole Harry Potter series. The first book is a good one and my daughter enjoyed a lot and sure your kid will love the magic and humor and suspense
I like Marry Poppins. I loved reading this book when I was in school. I remember reading this again and again. I remember going to the library during recess just to check out this book.
Dog Days Diary of Wimpy Kid is a very hilarious and good book. It is very funny and both kids and adults will love this. This is a good book especially for kids starting out reading.