I recommend the book "The Art of Writing Great Lyrics" by Pam Oland.
(
http://www.pamoland.com/art_of_writing_great_lyrics.html)
Her style of lyric writing (Top 40 pop) is not for me, but her style of
book-writing I found excellent, entertaining, and very illuminating.
- -ken
I didn't think such a book existed :-)
Did it help you? I'll have a look at it..
Thanks!
Julien