Sea Wonders: The Octopus, the Cuttlefish, and the Squid,

Marco Colombo, Francesco Tomasinelli, Giulia De Amicis, Craig Foster   

Blue Machine: How the Ocean Shapes Our World,

Helen Czerski

The Underworld: Journeys to the Depths of the Ocean,

Susan Casey

Where the Seals Sing, Exploring the Hidden Lives of Britain’s Grey Seals,

Susan Richardson

The Last Sunset in the West: Britain's Vanishing West Coast Orcas (Fully Revised and Updated Edition),

Natalie Sanders 

The Seaweed Collector's Handbook, From Purple Laver to Peacock’s Tail,

Miek Zwamborn

Blue Mind: How Water Makes You Happier, More Connected and Better at What You Do,

Wallace J. Nichols  

How to read water, Clues and Patterns from puddles to the sea,

Tristan Gooley

Deep Blue: My Ocean Journeys,

Steve Backshall

The Secret History of Sharks: The Rise of the Ocean's Most Fearsome Predators,

John Long

Life Between the Tides: In Search of Rockpools and Other Adventures Along the Shore,

Adam Nicolson 

Spirals in Time: The Secret Life and Curious Afterlife of Seashells,

Helen Scales

Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness,

Peter Godfrey-Smith

The Bathysphere Book, Effects of the Luminous Ocean Depths,

Brad Fox

The Whale in the Living Room: A Wildlife Documentary Maker's Unique View of the Sea,

John Ruthven

An Immense World: How Animal Senses Reveal the Hidden Realms Around Us,

Ed Yong

Wild Waters, A Wildlife and Water Lover's Companion to the Aquatic World,

Susanne Masters, Alice Goodridge

My Oceans: Essays of Water, Whales, and Women,

Christina Rivera

Monarchs of the Sea: The Extraordinary 500-Million-Year History of Cephalopods,

Danna Staaf

Flaws of Nature: The Limits and Liabilities of Natural Selection,

Andy Dobson

Blue Planet II: A New World of Hidden Depths,

James Honeyborne, Mark Brownlow

Voices in the Ocean: A Journey into the Wild and Haunting World of Dolphins,

Susan Casey

The Un-Discovered Islands: An Archipelago of Myths and Mysteries, Phantoms and Fakes,

Malachy Tallack, Katie Scott

The Bathysphere Book: Effects of the Luminous Ocean Depths,

Brad Fox

Jellyfish Age Backwards: Nature's Secrets to Longevity,

Nicklas Brendborg

Blue Hope: Exploring and Caring for Earth's Magnificent Ocean,

Sylvia A. Earle

Ocean: Exploring the Marine World,

Phaidon Editors, Anne-Marie Melster

Field Guide to Whales, Dolphins and Porpoises,

Mark Carwardine

100 Dives of a Lifetime: The World's Ultimate Underwater Destinations (100 of a Lifetime),

Carrie Miller, Brian Skerry

Reef Life: An Underwater Memoir,

Callum Roberts

The Big Book Of The Ocean: Discover the Secrets of the Earth's Amazing Seas,

Sona

Neptune’s Ark: From Ichthyosaurs to Orcas,

David Rains Wallace, Ken Kirkland

Over and Under the Wetland,

Kate Messner, Christopher Silas Neal

Over and Under the Waves,

Kate Messner, Christopher Silas Neal

Over and Under the Pond,

Kate Messner, Christopher Silas Neal

An Anthology of Aquatic Life,

 Sam Hume

The Eloquence of the Sardine: Incredible Stories from the Marine World,

 Bill François

Whales to the Rescue: How Whales Help Engineer the Planet,

 Adrienne Mason, Kim Smith

Spying on Whales: The Past, Present, and Future of Earth's Most Awesome Creatures,

Nick Pyenson

Reef Life: A Guide to Tropical Marine Life,

Brandon Cole, Scott Michael

The Amateur Plankton Researcher's Practical Guide, How to study Plankton at Home,

Albert Calbet

L'océan nous regarde, The ocean is watching,

Greg Lecoeur

Rewilding the sea, How to save our oceans, 

Charles Clover

Waters of the world, The story of the scientists who unravelled the Mysteries of our seas, glaciers, and atmosphere - and made the planet whole,

Sarah Dry

Ocean Anatomy: The curious parts & pieces of the world under the sea,

Julia Rothman, John Niekrasz