Oodles of Poodles : A riotous read-aloud story to make toddlers and children giggle, perfect for ages 2, 3, 4, 5 (by Rachel Morrisroe)

Ootlin (by Dr Jenni Fagan)

Open After Dark (by Sue Proffitt)

Operation Mincemeat : The True Spy Story that Changed the Course of World War II (by Ben Macintyre)

Optionality : How to Survive and Thrive in a Volatile World (by Richard Meadows)

Oral History of Atlantis, An : Stories (by Ed Park)

Orangeboy (by Patrice Lawrence)

Orator : The Life of Cicero and the End of the Roman Republic (by Catharine Edwards)

Orientalism (by Edward W. Said)

Origami Fortune Tellers (by Lucy Bowman)

Origins of The Wheel of Time : The Legends and Mythologies that Inspired Robert Jordan (by Michael Livingston)

Orkney : Megalithic Marvel of the Northern Isles (by Hector McDonnell)

Orlando the Marmalade Cat: A Camping Holiday (by Kathleen Hale)

Ottolenghi SIMPLE (by Yotam Ottolenghi)

Ottoline Goes to School (by Chris Riddell)

Our Better Natures (by Sophie Ward)

Our Brains, Our Selves : What a Neurologist’s Patients Taught Him About the Brain (by Masud Husain)

Our Haunted Shores : Tales from the Coasts of the British Isles : 31 (by Emily Alder)

Our Missing Hearts : ‘Will break your heart and fire up your courage’ Mail on Sunday (by Celeste Ng)

Our Wicked Histories (by Amy Goldsmith)

OUT & ABOUT MAP of the SOUTH WEST : The Ultimate Guide to the SW (by OUT & ABOUT MAPS LIMITED)

Out and About : A First Book of Poems (by Shirley Hughes)

Out of Darkness : Book 21 in the Sunday Times bestselling DSI William Lorimer series (by Alex Gray)

Out Of Place : A Memoir (by Edward W. Said)

Outlaw : The incredible new thriller from the master of modern espionage (by James Swallow)

Outlaw Planet : Winner of the Philip K. Dick Award - the wild, exhilarating SF adventure (by M.R. Carey)

Over the Rainbow : Tales from an Unexpected Year (by Alex James)

Over the Rainbow Bridge : The debut picture book from the nation's favourite SUPERVET (by Noel Fitzpatrick)

Over Work : Transforming the daily grind in the quest for a better life (by Brigid Schulte)

Overwhelmed : Ways to Take the Pressure Off (by Claudia Hammond)

Owl King : Faery Realms series: The darkly enchanting YA fantasy (by Bex Hogan)

Owl’s Lesson (by Nick Butterworth)

Oxford Children's Classics: Black Beauty (by Anna Sewell)

Oxford Playscripts: Frankenstein (by Mary Shelley)

Oxford School Dictionary & Thesaurus (by Oxford Dictionary)

Pablo and Splash : The hilarious kids' graphic novel series about time-travelling penguins (by Sheena Dempsey)

Pablo and Splash: Frozen in Time : The hilarious kids' graphic novel series about time-travelling penguins (by Sheena Dempsey)

Pablo and Splash: Viking Voyage : The hilarious NEW kids' graphic novel in the series about time-travelling penguins (by Sheena Dempsey)

Paddington and the Grand Tour : Band 15/Emerald (by Michael Bond)

Paddington in the Garden (by Michael Bond)

Paddock Grove: A Pony to Own : First in a pony adventure series about friends and their horses at an equestrian boarding school for animal lovers age 8, 9, 10, 11, 12, 13 (by J.P. Rose)

Paddock Grove: Riding for Gold : Pony adventure series about friends and their horses at an equestrian boarding school for animal lovers age 8, 9, 10, 11, 12, 13 (by J.P. Rose)

Paddock Grove: Runaway Horse : Pony adventure series about friends and their horses at an equestrian boarding school for animal lovers age 8, 9, 10, 11, 12, 13 (by J.P. Rose)

Pagans (by James Alistair Henry)

Pancake Face (by Georgia Byng)

Paperback Oxford English Dictionary (by Oxford Languages)

Parade's End (by Ford Madox Ford)

Paradises Lost (by Ursula K.Le Guin)