If we need anything from art at this dire time, it’s faith and fun. The shows below encourage flights into the imagination or nurture hope for the future. Artist Tove Jansson and her Moomins creations are nothing if not beacons of warmth and inclusivity, while EJ Hill’s installation and endurance performance transforms 52 Walker gallery into a space of healing. Likewise, an exhibition of historical media about atomic power at Poster House offers an unexpected message that protest can change the world for the better. And Andy Warhol’s early fashion drawings — well, those are just a pleasure to see. While you’re gallery hopping, make sure to visit Carrie Yamaoka’s captivating solo exhibition See-saw, ending this weekend at Anonymous Gallery on the Lower East Side. —Natalie Haddad, Reviews EditorAndy Warhol: FashionAnton Kern Gallery, 16 East 55th Street, Midtown, ManhattanThrough August 13Andy Warhol, “Reclining Cat With Two Shoes” (c. 1956), ink and graphite on paper (photo Julie Schneider/Hyperallergic)“[T]he show is infused with a subtle in-the-room-where-it-happened aura that’s playful and inviting.” —Julie SchneiderRead the full review.Fallout: Atoms for War & PeacePoster House, 119 West 23rd Street, Chelsea, ManhattanThrough September 7Detail of Jaroslav Veverka, “Not This! But Disarmament” (1963) (photo Lisa Yin Zhang/Hyperallergic)“The dozens of posters and other forms of mass media on view … emphasize how deeply ingrained the visual vernacular of nuclear development and disarmament is in popular culture” —Lisa Yin ZhangRead the full review.EJ Hill: Low-slung Promises on the Tongues of the Devout52 Walker, 52 Walker Street, Tribeca, ManhattanThrough September 13Installation view of EJ Hill: Low-slung Promises on the Tongues of the Devout at 52 Walker (photo Natalie Haddad/Hyperallergic)“In conversation with physical objects, Hill’s performance cuts through potential cynicism or preciousness and proffers a sense of solace” —NHRead the full review.Tove Jansson and the Moomins: The Door Is Always OpenBrooklyn Public Library, 10 Grand Army Plaza, Prospect Heights, BrooklynThrough September 30A photograph of Tove Jansson with Moomins toys (photo Lakshmi Rivera Amin/Hyperallergic)“[Jansson] recognized the wisdom of children and the invaluable role of art in nurturing imagination and empathy.” —Lakshmi Rivera AminRead the full review.