Fall is just getting started in the art world, which means that leaves have begun to tumble down from the trees—and, just as predictably, in-demand artists have begun rising up the professional ladder, signing with new galleries to begin exciting new phases of their careers. The changes mean that walking through art neighborhoods in major cities can be disorienting, with favorite artists suddenly showing in unexpected locales.

To help keep track of the transitions—and to flag the bright, often young things on the move—here’s a guide to the latest gallery switches you should know about.

• Sadie Coles HQ in London has snapped up the young artist and “conceptual entrepreneur” Martine Syms, who will open her first show at the gallery next fall. Bridget Donahue will continue to represent the artist in New York.
• The Iranian-born painter and animation artist Tala Madani has defected from New York’s Jane Lombard Gallery for Lisa Spellman’s 303 Gallery. She will continue working with dealers Pilar Corrias in London and David Kordansky in Los Angeles.
• Ian Cheng, who has a show up through September 24 at MoMA PS1, joins the New York and Brussels-based Gladstone Gallery. He will maintain his representation with Pilar Corrias in London and Standard (Oslo) in Norway.
• Turner Prize-winning artist Laure Prouvost, whose lush sound and video installations are the subject of a show opening next month at the Walker Art Center in Minneapolis, has signed with the London-based Lisson Gallery. She will still work with Galerie Nathalie Obadia in Paris, and carlier | gebauer in Berlin.
• Max Hetzler will begin showing the conceptual installation artist Loris Greaud in his native France, with the artist’s first show planned for February 2018. Pace Gallery will continue representing the artist in New York.
• German painter Bendix Harms has joined the Los Angeles gallery Moran Bandaroff. He also works with Anton Kern Gallery in New York, where he had a show of color pencil drawings this past spring.
• Lisa Brice has joined Stephen Friedman in London, where she showed a series of all-blue figurative gouaches this past spring. Salon 94 shows Brice’s work in New York and Goodman Gallery, in Johannesburg and Cape Town, shows her in her native South Africa.
• Stephen Friedman has also started representing the knitting artist Channing Hansen, who continues to show at CRG Gallery in New York and Marc Selwyn Fine Art in Beverly Hills.
• Van Doren Waxter in New York has picked up experimental Brooklyn photographer Mariah Robertson. She still shows in Los Angeles with M+B.
• The Turner Prize-nominated painter George Shaw has joined Mauruani Mercier Gallery in Brussels. His first show at the gallery, “The Lost of England,” is up now through October 3.
• The highly touted Beijing-based painter Jia Aili has linked up with Gagosian Gallery, where he will now show his epically proportioned work.
• The figurative painter Mequitta Ahuja, who has a solo show currently up at the Sonja Haynes Stone Center for Black Culture and History, is now being represented by Brand New Gallery, based in Milan.
• Painter Trudy Benson now shows with New York’s Lyles and King, where she had a two-person show this summer with Yann Gerstberger. She also shows in the city with Ceysson & Bénétière.