My daughter just turned 3, and we have a new baby in the house. Angelina is new to my daughter, but I knew that my niece liked her when she was younger. We picked a couple of Angelina books out at the library. I had a problem with Angelina's behavior in both books, and my daughter emulated the bad behavior from this book!
When Angelina isn't getting the attention she wants, she throws a tantrum. She tosses books and toys around the room. As a result, she then gets the attention she desires from her parents and grandparents. After reading this, my daughter threw books at the door of her room one day, then told me "I just got so angry," which is what Angela says in the book. And I had actually toned down Angelina's tantrum when I got to that part.
I also didn't like the fact that Angelina says she "hates" her baby sister (I skipped that line when reading it). I suppose this is a lesson to me, to read books before reading them to my daughter.
While the other book we checked out, "Angela's Birthday," was okay, there was still a point where Angela crashes her bike and says "Why did you make me race?" to her friend Alice. I didn't see how placing the blame on someone else held any value in the story. Again, I edited this when reading to "Why did we have to race?"
If you're looking for a book for a new or soon-to-be older sibling, my daughter enjoyed "ZaZa's Baby Brother" and "The Berenstain Bears' New Baby."