Europe on a shoestring (Travel Guide)
As I mentioned in my Interrail posts, this physical book by Lonely Planet was our bible.
All our travel plans were based on the maps and suggestions included in it.
This is actually the latest version, with a different cover from the one I bought years ago.
* This is an affiliate product sold by Amazon, which means if you buy it, I’ll get a small commission at no extra cost to you.