For those just starting out on the fascinating journey of discovery we know as calligraphy, there has never been such a wealth of instruction in the form of 'how to do it' books. Unfortunately, the quality does not match the quantity and some instructions in print are badly conceived, poorly executed and downright shoddy. I have come across three books lately which, in my opinion, should never have seen the light of day (no names for fear of litigation).
I can remember, when I started out, all examples of 'calligraphy' looked marvellous and it was only after a few years of practice that I was able to discern between wonderful, good and poor lettering. I am concerned that some of the bad examples on offer can lead to bad habits which can take some time eradicating. I speak from personal experience.
Have a look at the book recommendations at the top of the 'penmanship' forum by BillTheEditor. He has years of experience as a calligrapher behind him and knows what it's all about. There are also other good recommendations under this topic.
Also, the instructions and recommendations by Ann Finley and corienb are well worth studying and they're free!
caliken