Can only recommend this. The time savings when looking up translations is enormous compared to a book. The vocabulary is up to date and can be updated more online. It is also possible to build an entire reference library. So it is possible to simultaneously search for a word in various reference works and the results together to compare. It can be almost as many works include (for example, various specialized dictionaries or other languages such as Spanish, French, etc.) - all in a single interface. Also useful and time-saving is the website translation of single words. Just in Internet Explorer (Firefox works also) click on a word and you get the right translation in the taskbar. In my view, an entirely misunderstood work I do not want to miss!