The editing process is somewhat different for articles and books, and can be quite complex at times, so this could be a very long answer. It starts with the reviewing process, which is double-blind for a good journal, and may involve as many as five independent reviews. A book will usually be submitted as a proposal, with one or two sample chapters, and sent to one, maybe two, readers. The book review will assess academic quality, but also style, readability, target audience, and interest for a wider readership. Journal reviewers focus on intellectual content above all. Journals have a high rejection rate even of good pieces and are looking yo reject; books are about being a good commercial prospect. Journal editors will be guided by reviewers and will collate and interpret views; book editors will be more direct, and more technical and practical. They will also accept early, then work developmentally. Journal editors may be more or less developmental, but judgment and acceptance may be delayed through several rounds of revisions - they accept the finished piece only. Copy editors help polish the style and technical delivery, proof readers remove error, but few journals use copy editors these days. Any more specific questions?