If you can, please ensure that the natal details are on the chart - date, time and place. It helps those who like to cast their own chart and even do further work such as using their preferred house system.
If you can't post a picture of your chart, then post your natal details in the form hh:mm dd/mm/yyyy (the internationally recognised format) If possible use the 24 hour clock but if you keep to a 12 hour clock make sure you add the AM or PM it obviously makes a great deal of difference.
Finally add the place of birth.
Optionally you can add a list of planetary placements but remember to also add the house cusps and a statement of what house system you used.