Invitation for Abstracts, 4th ICGESM 2010, Tehran, Iran Dear ISSMGE members and Respected Colleagues First of all I would like to wish success and prosperity for you and all respected society members in coming New Year. Following recent international progresses in various fields of Geotechnical Engineering, there has been a tremendous progress in this field in Iran. Following previous three international events in Iran organized by Iranian Geotechnical Society (IGS) as a member of International Society, the 4th International Conference in Geotechnical Engineering and Soil Mechanics (4th ICGESM) has been scheduled to be held in 2nd and 3rd of November, 2010. Also, one or two days workshop will be held before main conference. The theme for this Conference will be New Developments and Lessons Learned in Geotechnical Engineering. At the moment we as Organizing Committee are in the process of receiving abstracts for this Conference. The deadline for receiving abstracts for general papers is January, 15th 2010. The abstracts should be sent to my e-mail add as: fardin@sharif.ir. It would be greatly appreciated if you kindly inform your respected members in this regard and put this information and our website address in you national homepage. Also, I will consider and arrange for those members or companies who are interested to take part in our workshop. More information about the conference is available at: www.icgesm2010.ir . Participation of your colleagues is most welcomed and please kindly let them know about this event. Best Regards & New Year Greetings, Fardin Jafarzadeh, PhD. Head of Scientific Committee of 4th ICGESM 2010; Vice Chairman of Iranian Geotechnical Society; Associate Professor, Sharif University of Technology; Tehran, Iran.