Forget Lonely Planet. If you're planning a jaunt across the European continent, this is the only travel guide you need: an online map of Europe with each local word for "beer".
This online map created by Reddit user T-Other1 lets you know at a glance what the word for "beer" is in every country in Europe, complete with common pronunciations for each region. On the downside, none of the countries are identified, so you need to know your geography to make the most of the map -- otherwise you could order a Pivo in Serbia and make a tit of yourself.
You can click on the map below to enlarge the image. There's also a PDF version available here.