I, too, recommend all those noted by
@Belfoured .
The complete reference for Naisawald's book, btw, is:
Naisawald, L. VanLoan (1999)
Grape & Canister: The Story of the Field Artillery of the Army of the Potomac,
1861-1865 (Stackpole Books, Mechanicsburg, Pennsylvania).
In addition, I would recommend these for your library:
Coggins, Jack (1990)
Arms and Equipment of the Civil War (Dover Publications, Mineola, New York)
It's short but packed with information and great illustrations (also by the author). It covers more than artillery but there's a lot about artillery, field and heavy. You can get used copies of this publication for cheap on Amazon.
Alexander, Edward Porter edited by Gary Gallagher (1989)
Fighting For The Confederacy: The Personal Recollections of General Edward Porter Alexander (University of North Carolina Press).
In addition to just being a great read there is a lot of detail about the use of artillery. Porter was one of the great artillerists.
Jones, Charles H. (2001)
Artillery fuses of the Civil War (O'Donnell Publications, Alexandria, Virginia)
If you want to know about fuses this is the ticket. The downside is that it's expensive and somewhat hard to find. One could certainly understand fuses without reading this book but it has great photos and really is the premier reference.
Melton, Jack W. Jr. (2018)
The Half Shell Book: Civil War Artillery Projectiles (Historical Publications, Charleston, South Carolina)
This is a great piece of work, beautifully presented. It has high quality photos of shells cut in half as well as some x-rays along with very good text. If you want to know the nitty gritty of how shells were constructed this is the one to have. There's really no competition. The downside is that it's expensive. You have to order it directly from Jack from his Civil War Projectile and Cannon web site (which everyone interested in CW artillery ought to know about).
Hope that helps.
Oh, and I have written a piece about field artillery which covers the basics and is factually correct (peer reviewed). If you want a copy I'd send you a PDF if you PM me your email address.