I've got to build some built-in bookcases. Plan to use 3/4" stain grade hardwood plywood. I have read some articles about plywood joinery that include:
Butt joints w/ biscuits.
Shallow dados w/ biscuits.
Biscuits w/ screws or nails.
Continuous tongue & groove w/ glue.
Continuous tongue & groove w/ glue & nails.
Any opinions out there?