A book-review thumbnail should help viewers identify the work and understand the review's angle. A recognizable cover often supplies more useful information than several decorative reading props.
Establish the main object
Frame the book so its title or distinctive cover remains legible at small size. Avoid glare on glossy surfaces. If using a separate cover image, confirm the source and your intended use are appropriate.
Add one review clue
A short label can identify the type of discussion, such as a spoiler discussion or a comparison of editions, when accurate. Do not place a long verdict over the author's name or the feature that makes the book recognizable.
Check the implied content
Make sure the image does not suggest an interview with the author or an official endorsement unless that is true. If several books appear, give each a readable role or focus on the primary title. Keep a clean source image so later text revisions do not require rebuilding the photograph.