It's useful to know how you're doing at work, but feedback from managers and colleagues can often be unhelpful, upsetting, or even non-existent. So what's the best way to give and receive it?Evan Davis and guests discuss some top techniques, particularly in the tricky area of negative feedback, and the importance of training managers in how to have these conversations. But feedback isn't just about managers - we learn the best ways for employees to receive and act on it. Plus, how frequently should an employee's performance be measured - we discuss the pros and cons of the annual appraisal - and whether technology helps or hinders.Evan Davis is joined by:Catherine Hearn, UK HR director, Amazon Katie Obi, chief people officer, Advanced Margaret Cheng, HR consultant, executive coach and author of 'Giving Good Feedback'PRODUCTION TEAM:Producer: Simon Tulett Researcher: Paige Neal-Holder Editor: Matt Willis Sound: Graham Puddifoot and Hal Haines Production co-ordinator: Rosie StrawbridgeThe Bottom Line is produced in partnership with The Open University.(Picture: A woman and a man talking at a desk. Credit: Vladimir Vladimirov, Getty Images)