This is a very outdated version of the BHS, actually it's from 1967/1977. The traditional introduction has been cut out for some strange reason. I do however like it synchs very well with the Apparatus, but since the edition is so outdated the reader should now updates has been done since 1967/1977. That's why I give it only 2 stars. I also think the price was too high. To this price it's perhaps better to buy an up to date paperback version. As software this edition and Apparatus works excellent on my devices.