On the
review aggregator website
Rotten Tomatoes, the film holds an approval rating of 50% based on 42 reviews, with an average rating of 5.4/10. The website's critics consensus reads, "The sweet promise of
Book of Love fun premise is left frustratingly unfulfilled, although it may be fluffy enough to tickle the fancies of undemanding rom-com fans."
Metacritic, which uses a
weighted average, assigned the film a score of 44 out of 100, based on 5 critics, indicating "mixed or average" reviews. Tara Bennett of
Paste rated the film 7.9 out of 10 and wrote that "it's the charming chemistry of Sam Claflin and Verónica Echegui that makes director Analeine Cal y Mayor's work a sweet confection to enjoy", dubbing the film "a surprising mix of sweet and salty, silly and sincere, that earns those coveted rom-com sighs." Tomris Laffly of
Variety stated, "While Analeine Cal y Mayor's amiable romp doesn't master the
screwball language, it still worthily celebrates the art of sex and romance through a charming tale of opposites". James Croot of
Stuff opined, "What could have been a cringeworthy cross-cultural comedy is actually a surprisingly entertaining romp", adding that "Claflin and Echegui winningly sell the premise and punchlines." Gary Goldstein of the
Los Angeles Times praised the performances of Claflin and Echegui and wrote, "Despite being often preposterous, the cross-cultural comedy
Book of Love is an entertaining watch. Just don't scratch even the slightest bit beneath its glossy, super-contrived surface." James Verniere of the
Boston Herald graded the film a B+ and stated, "It's not ''
Bridget Jones's Diary''. But it's more exotic, and it's better than that cloying piece of nonsense
Me Before You (2016) that Claflin made with
Emilia Clarke." Christy Lemire of
RogerEbert.com awarded the film one-and-a-half out of four stars, criticising the lack of chemistry between Claflin and Echegui and stating, "The film is clearly sweet and well-intentioned, but [...] Analeine Cal y Mayor has trouble transcending the confines of her meager budget, which leaves
Book of Love looking and sounding distractingly chintzy." Natalia Winkelman of
The New York Times criticised Claflin's performance and commented that "there is something tired and clichéd about a Mexican woman's being deputed to help a British
fuddy-duddy embrace narrative spice." Rating the film one out of five stars, Benjamin Lee of
The Guardian concluded, "Romantic comedies are expected to be contrived and far-fetched – it's a genre that allows for a lot of exceptions – but they really shouldn't be this dull." In October 2022,
Book of Love won the
Imagen Award for Best Primetime Program – Special or Movie. ==References==