LJ Cohen is the author of nine novels across the science fiction and fantasy genres and was among the first wave of indie writers to qualify for SFWA membership. Her novels include the Halcyone Space series — Derelict (2014, a Library Journal self-e select title and book of the year), Ithaka Rising (2015), Dreadnought and Shuttle (2016), Parallax (2017), and A Star in the Void (2018); the Changeling’s Choice novels —The Between(2102), and Time and Tithe (2015); and Future Tense (2014). Her most recent novel Litany for a Broken World was published in 2025.
Her short stories have appeared in various anthologies including Of Gods and Globes, Unfit, and Star Rebels. LJ's poetry has appeared in numerous ezines and journals including Amaze: The Cinquain Journal, Gunpowder River Poetry, Loch Raven Review, Poems Niederngasse, Stirring: A Literary Collection, The Writer's Hood, World Haiku Review, and New Solutions. She is co-editor of Pen-Ultimate: A Speculative Fiction Anthology (2013) and Pen-Ultimate II (2017).
Her professional writing includes multiple chapters in Chronic Pain Management for Physical Therapists (Butterworth-Heinemann, 1997), "The behavioral role of physical therapy in pain management" (Harriët Wittink, MS, PT, OCS, and Lisa Janice Cohen, MS, PT, OCS, in Current Review of Pain, 1998, Volume 2, Issue 1, pp 55-60), and "Chronic Pain" (Physical Rehabilitation, 5th edition, FA Davis, 2007).
After a twenty-five year career in physical therapy, LJ now uses her clinical skills to injure her characters.
She is on the board of Broad Universe.
LJ, a recovering city-mouse, now lives on her homestead (Starfield Farm) in central MA. She extremely proud of her tractor riding and tree pruning skills. http://ljcohen.net