Are there any recommended books that would detail the rules and conventions regarding music notation? I would like a guide, possibly, in the form of one complete book. I would like to know things about notating rests (should a rest be dotted), repeat signs, coda etc.
Thanks!
That should be covered in any music theory book, but you can find books specific to reading music on guitar that would probably cover it, too.
For writing notation, Elaine Gould’s Behind Bars is the industry standard. It’s priced like a text book: Behind Bars: The Definitive Guide to Music Notation (Faber Edition): Gould, Elaine: 9780571514564: Amazon.com: Books
For learning to read, I like David Oakes’ Music Reading For Guitar: Music Reading for Guitar (The Complete Method): David Oakes: 8601404993978: Amazon.com: Books
If you give me a little more context about where you’re at currently and where you’re trying to go, I can give a more specific recommendation.
I’m looking for books on writing notation. Behind Bars looks good, and very detailed. Are there any other books you would recommend, or is Behind Bars the best there is?
Behind Bars is the most-referenced work among engravers—ie people who prepare notation for publication. Might be overkill. The price alone has put me off of it.
Berklee Contemporary Music Notation by Jonathan Feist is also quite good, especially if you’re somewhat new to notation.
Only caveat there is that it uses Berklee’s method for chord symbols, which is stupid and definitely not the standard. (For example, they don’t write “D9”… they write “D7(9)”. 
)
For me personally, the biggest improvements have come from personal feedback on my charts. For the first decade, I would ask a couple trusted friends/experts to nitpick my work.
And these days whenever I arrange/notate a project, I ask the players to send me their marked up charts afterwards. Really allows you to empathize better with people who play different instruments and better serve them next time.
Thanks, I will go for the Berklee book. As you say, the Behind Bars book is overkill - especially for a very casual reader such as myself.
It depends on what your weaknesses are in notation. But, assuming you know basics of clefs, and pitch notation, for the vast majority of people, rhythmic notation is the stumbling block - both for writing and for sight-reading. Have you seen " The Rhythm Book: Beginning Notation and Sight-Reading for All Instruments" and " The Rhythm Book: Intermediate Notation and Sight-Reading for All Instruments," both published by Hal Leonard and sold on Amazon?