When you have finished writing an article, I recommend allowing the person interviewed to see the final draft you plan to send to a magazine editor. But don’t let the person make unnecessary changes! Some publications will want a signed release from the person interviewed before the article is published, but I think it is good to have your own release if the magazine doesn’t require it. Now, books are different. That becomes co-authoring, and a contract is involved.
In articles, the name of the person interviewed is placed first, then “as told to” and the writer’s name. For example: “The Providential Escape” by Henry Fahman as told to Susan Titus Osborn. On leader’s guides and other pay-for-hire work, the words “prepared by” often precede the author’s name. On these kinds of projects, the author’s name usually goes inside the book or booklet, rather than on the cover. For example, Leader’s Guide for You Gotta Keep Dancin’ by Tim Hansel prepared by Susan Titus Osborn. On books, the actual author’s name is placed second after the person whose story is being told. The names are separated by “with.” For example, You Start with One, by Deo Miller with Susan Titus Osborn.