If you want to improve your grammar, vocabulary, or writing style, simply hold that as part of your purpose when you PhotoRead.
You'll notice an improvement in short order.
I remember so vividly one of our early students. This was when a class met on four evenings over several weeks.
On top of her term paper her teacher wrote, "A+ Brenda, your writing style improved overnight. What did you do?!"
She merely PhotoRead a stack of books before writing her report.