I was in 3rd Grade, severely dyslexic and frustrated because I didnt know how to read beyond what is written for babies. However despite this I had a knack for history, especially ancient egypt. My teacher gave this book to me and taught me how to read it, over and over until with the help of the series i slowly caught up to the rest of the kids. Yes the early books had fragmented grammer, but for someone like me who was struggling to read it worked out fine. I currently have all of the books from the series I grew up with, I stopped in 2004 as I was too old, but I am collecting the series for my son, who I hope, one day, love the series just like I did.