| Best Selling Secrets | |
|---|---|
 Poster | |
| 同事三分親 | |
| Genre | Sitcom |
| Starring | Esther Kwan Elaine Jin Alvina Kong Vin Choi Geoffery Wong Yoyo Chen Stephen Au Bill Chan Wayne Lai Wong Cho-lam |
| Country of origin | Hong Kong |
| Original language | Cantonese |
| No. of episodes | 364 |
| Production | |
| Producer | TVB |
| Production location | Hong Kong |
| Running time | 20 minutes |
| Original release | |
| Network | TVB Jade |
| Release | March 12, 2007 – August 7, 2008 |
| Related | |
| Off Pedder | |
| Infobox instructions (only shown in preview) | |
Best Selling Secrets (Traditional Chinese: 同事三分親) is a TVB modern sitcom series broadcast from March 2007 to August 2008.
The sitcom is about office politics in an advertisement company, as well as family and romantic relationships amongst the characters.