My 6 y.o. son's been doing the daily exercises for about three weeks now. After one week, his eyes were tracking noticeably better. We'll be keeping up with these exercises every day. I've recommended this book to many mom friends as Crafft's reasoning seems very sound and the exercises are logical and easy.

We are buying our century old home and want to see how we can make the best updates that complement it's architecture.

If you read enough Tom Horn, you begin to see a lot of repetitiveness. He cuts and pastes out of his other books to fill space. The new information was great and helpful but the huge sections pasted out of Exo-Vaticana, Petrus Romanus and other books is irritating... Four Stars for the new stuff but I had to take a star off for the cut and paste filler.

11/2012: revising my review to update it per my correctly configuring available options in G Data. Bottom line is that G Data is extremely comprehensive software, which means you sometimes have to dial it back a bit (uncheck some of its power in the settings); otherwise it can excessively degrade your PC's performance. When you dial back some of the settings, it is very powerful software that doesn't overload your CPU.