I rate this point at 3/10 because reducing travel guides to a simple component of fictional inspiration lacks pragmatism.
The inspiration from a book has less than a 10% chance of converting into actual travel without concrete verification.
A guide, with its data on costs (factor 8/10) or climate (factor 7/10 in Canadian winter), is an essential validator.
If a guide reveals a cost 200% higher than your average flight budget or 75% of rainy days annually, the initial inspiration becomes pointless, like dreaming of a beach in December in Quebec.