What is Reciprocal linking or link exchange?

[raymail]

I understand that Link exchanging or reciprocal linking is where two sites
exchange links. How do I implement this? I heard that this is the easiest way to build links. Do the search engines value this type of links? If so how do I start off doing this?

[megajohn]

reciprocal linking is a SEO technique, where two websites exchange links. A webmaster sends a request to another webmaster for exchanging links. Although Google doesn't value such links but they still hold some worth. If you opt for reciprocal linking, always exchange links with relevant, theme based websites.