TOJDE is appeared on your screen now as Volume 10, Number: 4. This is the last issue of the year 2009 and 10th anniversary of TOJDE. In this issue it is published 3 notes for Editor, 13 articles, 4 book reviews. And this time, 33 authors from 13 different countries are placed. These published articles are from Bangladesh, Egypt, India, Iran, KKTC, Lesotho, Lithuania, Malaysia, Pakistan, Romania, United Kingdom, USA and Turkey.