44 Scotland Street is the first in the 44 Scotland Street book series by Alexander McCall Smith. I read his No. 1 Ladies detective Agency series and loved it (probably because I could relate to his picture of Africa that he painted from growing up in South Africa) and really enjoyed this first book too. It was published in a newspaper in installments so the chapters are short, but not choppy. McCall Smith did a good job at making it run smoothly.
So read them both.