Agent profile summary
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- picture booksmiddle gradeyoung adultchildren's booksillustratorscommercial fiction
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literary fictiondiverse voices - How to submit
Last checked 25 May 2026·Last verified: 25 May 2026
Marietta B. Zacker is a literary agent at Gallt & Zacker Literary Agency based in US. Their list focuses on genres including picture books, middle grade, and young adult. Currently closed to submissions, with response guidance listed as GZLA endeavors to respond to all queries within 4 weeks. If they have not responded in that timeframe, writers may resend or query another GZLA agent.. For current guidelines, check the agent's own submission page linked below.
Age Categories
Picture Books, Middle Grade, Young Adult, Children's
Response Time
Usually responds within GZLA endeavors to respond to all queries within 4 weeks. If they have not responded in that timeframe, writers may resend or query another GZLA agent.
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This profile was last verified on 25 May 2026. PairPi tracks UK literary agents' submission guidelines against their own websites. If you spot something wrong, please email hello@pairpi.com.