Here's a list of books by V.C. Andrews that I read between 1991 and 1997:
Flowers in the Attic
Petals on the wind
If there be thorns
Seeds if yesterday
Those were all part of the Flowers in the Attic series... I loved these books, and the movie Flowers in the Attic as well. As with any series though, the first book was the best, and the book was much better then the movie. This story starts with 4 children losing their father and their mother moving them to the house she grew up in with her mother who did not approve of her marriage or her children. As the title says these children were locked in the attic. The following 3 books in the series tell the story of the children's lives after the attic.
The next V.C. Andrews books I read was:
My Sweet Audrina (This book still has a place in my top 10 books of all time, and I highly recommend it to anyone looking for something new to read) this story is about a little girl who is haunted by her "dead" sister with the same name.
The next 2 series were good, but not on my favorites list. I didn't even read all of the first series as you can see...
Gates of Paradise
Secrets of the Morning
This next V.C. Andrews series I found much more enjoyable then the previous two. It's not that I hated the last ones, I don't think I could really hate any of her books, I just don't remember too much about those... I know the first one had to do with a owning a hotel, and I remember thinking how cool it would be.
The Ruby series had to do with a girls mother who found herself raising her daughter alone and eventually leaving her with family and how the young girl coped. Then in the 2nd half of the series finding her mother again and learning about her life.