The book has expanded significantly to 828 pages (up from 481 in the 1998 edition), largely due to more extensive revision lessons.

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| Feature | PDF Exclusive | Paper + Audio CD | |--------|--------------|------------------| | Price | Lower (~€35) | Higher (~€75) | | Portability | All on one device | Bulky book + CD drive needed | | Learning app | No | No (unless you buy Superpack) | | Ease of use | DRM issues possible | Just open and go | | Durability | Depends on your battery | Forever |