A book providing information for travelers or users, such as a travel guide or instruction manual.
旅行の前にガイドブックを買った。
I bought a guidebook before the trip.
このガイドブックにはおすすめのレストランが載っている。
This guidebook lists recommended restaurants.
I walked around town with a guidebook in hand.
This restaurant is listed in the guidebook.
I used a guidebook as a reference when planning the trip.