It is exceedingly tough to write a book. Thankfully, I had people who encouraged, supported, and directed me; they made this experience more pleasant than I could have imagined. First and foremost, I am deeply indebted to my supervisor, Dr. Frank Dignum, many thanks to his invaluable advise, constant support, and patience during my PhD. Also, thanks for trusting in me and giving me the opportunity to work on this project. Your comprehensive perspective on various topics in this domain, along with your solid scientific memory and deep knowledge, has always fascinated me. When you accepted the job offer in Sweden, I panicked and I thought I lost your supervision and cannot finish my PhD. I was certainly wrong and I have been supportive till the last moment of finishing this thesis. I could not have finish it without your constant help and kind support. It has been an honor working under your supervision. I would like to take this chance to thank Prof. dr. John-Jules Meyer for his generous support prior to his retirement. My gratitude extends to Prof. dr. Pinar Yolum Birbil who has been my supervisor in the last step. Pinar, thank you for making time in your busy schedule to have meetins with me and read the thesis very attentively and efficiently. Thank you for all of your insightful advice on how to strengthen the book. Next, I would want to thank everyone involved in the SAF21 project. Thanks to you folks, I had a fantastic time in Europe and learned a lot about various nations' cultures. Throughout all SAF21 courses, conferences, and events, we all grow professionally together. But, more importantly, I got the opportunity to establish new friends here. Cezara Pȃstrȃv, thank you for always having my back and being a great teammate. I am wholeheartedly grateful to have such a smart and supportive friend. Melania Borit, thank you for coordinately the project and special thank for your help with improving my presentation skill. Michaela Aschan and Hanne Risan Johnsen thanks for your effort during the SAF21 events. Lia n Aodha, you are one of the sweetest persons I have ever met. Your comments on my conference presentations was and continue to be extremely beneficial. Charlotte T. Weber, you have inspired me by always remaining cheerful and smiling. Thank you for being such a positive person and introducing me as an aunt to your adorable son, Theodora Sam. Thank you, Luz Karime Molina, for adding color and beauty through the valuable visualization to SAF21. Rannvá Danielsen, Ixai Salvo Borda, Kristinn Edvardsson, Alexander Holdgate, and Shaheen Syed, thank you guys for your constant enthusiasm and energy. I would like to thank all my colleagues in Utrecht University with whom I shared many memories over the last several years. First and foremost, I am happy to have wonderful officemates, Davide Dell'Anna, Jieting Luo (Loura), and Chide Groenouwe. Davide, many thanks for being a breath of fresh air amongst all the stress that I was facing. Your hard-working, determination, street smart, and motivation has inspired me....