Programming Language Pragmatics by Michael Scott<p><a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Programming-Language-Pragmatics-Third-Edition&#x2F;dp&#x2F;0123745144" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Programming-Language-Pragmatics-Third-...</a><p>I haven&#x27;t read a lot of language books, but this one has good information on the various design choices one might make when building a language.  Like the others listed in the comments, it&#x27;s more implementation-focused than semantic design-focused.