Add spaces: DuringmyworkwiththebookIhaveencounteredencouragementandhelpfulnessfrommanycornersandIwanttothankallthepeople,whohavecometomewithinformationandguidanceandwhohavethuscontributedtocompletingthetask.
During my work with the book I have encountered encouragement and helpfulness from many corners and I want to thank all the people, who have come to me with information and guidance and who have thus contributed to completing the task.