UPDATE - Turns out this is partially true. The issues are exclusive to the Spanish translation, and that version will be reprinted.
Those who've gotten their hands on the Animal Crossing: New Horizons Official Companion Guide from Future Press are noticing that the guide is chock-full of mistakes. Not exactly what you want in a guide that's supposed to help you play. It seems the situation is so bad that Future Press, publisher of the book, might be offering replacements.
While the company hasn't said anything publicly, reports are coming in saying that Future Press customer service is claiming another printing of the book is on the way, and this one will have all the issues fixed. For those who snagged the first edition and want a replacement, they'll be able to get the fixed version for free. We've reached out to Future Press for further details on the situation.