Sea Magic: Connecting with the Ocean's Energy by Sandra Kynes
https://www.amazon.com/Sea-Magic-Connecting-Oceans-Energy/dp/0738713538/ref=sr_1_1?ie=UTF8&qid=1475487705&sr=8-1&keywords=sea+magic
Traditional Witchcraft for the Seashore by Melusine Draco
https://www.amazon.com/Traditional-Witchcraft-Seashore-Melusine-Draco-ebook/dp/B00719Z5KI/ref=sr_1_1?ie=UTF8&qid=1475487825&sr=8-1&keywords=seashore+magick
Earth Power: Techniques of Natural Magic by Scott Cunningham
(Gives good information and spells about sea witchcraft)
https://www.amazon.com/Earth-Power-Techniques-Llewellyns-Practical/dp/0875421210/ref=sr_1_1?ie=UTF8&qid=1475488071&sr=8-1&keywords=earth+power
Earth, Air, Fire, & Water: More Techniques of Natrual Magic by Scott Cunningham
(Gives good informatiion and spells about sea witchcraft)
https://www.amazon.com/Earth-Air-Fire-Water-Techniques/dp/0875421318/ref=sr_1_1?ie=UTF8&qid=1475487940&sr=8-1&keywords=earth+air+water+fire
Mermaid Magic: Connecting with the Energy of the Ocean and the Healing Power of Water by Serene Conneeley
https://www.amazon.com/Mermaid-Magic-Connecting-Energy-Healing/dp/0987050532/ref=sr_1_1?ie=UTF8&qid=1475488143&sr=8-1&keywords=mermaid+magic
From the Roaring Deep: A Devotional in Honor of Poseidon and the sprits of the Sea by Bibliotheca Alexandrina
https://www.amazon.com/gp/product/1515274578/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Seashell Therapy: Discover the Healing Power of the Sea by George Toth
The Healing Power of Seashells: Gifts of the Sea by Daya Sarai Chocron
https://www.amazon.com/Healing-Power-Seashells-Gifts-Sea/dp/184409068X/ref=sr_1_1?s=books&ie=UTF8&qid=1475488497&sr=1-1&keywords=healing+power+of+shells
Folklore and the Sea by Horace Beck
https://www.amazon.com/Folklore-Sea-Maritime-Horace-Beck/dp/0913372366/ref=sr_1_1?s=books&ie=UTF8&qid=1475488600&sr=1-1&keywords=folklore+and+the+sea
Seafaring Lore and Legend by Peter Jeans
https://www.amazon.com/Seafaring-Lore-Legend-Peter-Jeans/dp/0071486569/ref=sr_1_1?s=books&ie=UTF8&qid=1475488660&sr=1-1&keywords=seafaring+lore+and+legend