Use coordination and subordination to combine the short sentences below into one sentence.Coordination and Subordination: Combine the sentences...

You should not have put a comma in front of "and" -- it is
not used to cooridinate a 2nd independent clause, you are only joining two verbs (read
and appreciate).  As for the last sentence, you could probably use "whose" rather than
"which" to more clearly indicate the ownership of the
books. 

Another suggestion for better parallelism is to
change the first part of the sentence to say:

Both
Americans and Englishmen read...

Even with these
suggestions it is still a kind of awkward sentence.  If you are required to use a
subordinating and a cooridinating conjunction to fix the sentence, be sure to consult
your grammar text for a list of common conjunctions.  Remember that only COORIDINATING
conjuctions introducing a 2nd clause need a comma in front of them, suboridinating
conjuctions do not.