Every review and guide includes an option that enables eBay members to vote on whether it was helpful or not. Look for the 'yes' and 'no' buttons next to the questions 'Was this review helpful?' and 'Was this guide helpful?'

The 'most helpful' reviews and guides are selected based on the number of 'yes' votes they receive.
Note: To vote, you must have a minimum Feedback rating of 5.