depends on YOUR Garand in a way
Waldo;
I think it depends on the actual Garand (or Garand's) that you own as to what books are "good" ones.
If you have a pristine, all correct Winchester from WWII then maybe you can learn all you want to from one or two books like Canfield and others posted above.
However, if you are like a LOT of shooters and accumulators (like me)…..your Garand is maybe post WWII, and/or an arsenal overhaul with a bunch of different manufacturer components, different barrels, mixed stocks/handguards, etc.
Don't get me wrong........these are among the finest Garands for fun shooting and collecting. The rebuilds are a entity all their own...and you won't find anything about them in prior publications. However, Canfield and Scott Duff have produced a wealth of good info on these post WWII rebuilds.
I've got several books but the one that fits right in with my IHC postage stamp, 1966 Red River Army Depot overhaul M1, is Scott Duff book "The M1 Garand: Post World War II"...It covers Springfield Armory, International Harvester, Harrington & Richardson, Post WWII rebuild period, Korean War Production, and data sheets to identify original rifles and for use in restorations.
In addition...…….just to get your new "library" kicked off, I'm attaching to reprint articles from American Rifleman...these should get your "juices flowing" on your search for more info on the fabulous M1 Garand!
PS: Cannot include the 2 articles as they exceed to Forum max size for attachments. Just Google "The International Harvester M1 Garand Rifle", Bruce Canfield, American Rifleman reprint Tuesday October 27, 2015 (12 pages)….it's about 6MB, the other one is titled "In the System: M1 Garand Rebuilds" by American Rifleman Staff, Thursday December 10, 2015, originally published December 2003 (15 pages)...it's about 5 MB so have plenty paper in your printer and enjoy!