Affiliate Links

As an Amazon affiliate, we earn money from qualifying purchases on this website. Your purchases through affiliate links on this website support ocean science education. We offer our books free of charge to students engaged in marine studies and to the ocean-interested public.

Affiliate links mostly appear in Our World Ocean, the oceanography textbook made available on this site. Clicking on a reference may take you to a page on Amazon. There you can read descriptions and purchase the product . If you do, we receive a small amount of money in return.

Our textbook also features hundreds of references to the scientific literature. These are not part of an affiliate program. To help distinguish affiliate from non-affiliate links, we use and after the reference in the text. 

Of course, in keeping with our sustainability pledge, we encourage you to support independent book owners. Your purchase of used books helps reduce consumption of new materials. Hopefully, these practices will increase reuse and recycling…for the planet's sake.

We greatly appreciate your support. If you have any questions about our affiliate links, please don't hesitate to contact us.

Male and female student surveying plastics on sandy beach with sparkling water behind them
Two students conducting a plastics survey on a local beach.