Domino books are tiny 1" x 2" books made -as you would expect - from dominoes for covers and a concertina of pages for the inside.
They are pretty, easy to make and have the inexplicable appeal of the miniature.
Alcohol inks make attractive covers on their own, The colours run into one another like oil on water. Cover the sides and run over onto the under side as well so no white will show.
When dry Glue n' Seal can be used to add tiny images.
The inside could also be painted or a little story could be added.
The pages may need trimming to fit neatly into the book...
The covers are attached to the ends of the concertina with all purpose glue; a length of ribbon is glued underneath the front and back to act as tie closures.