Of a number of similar resources in print and on the internet, I like best a pyramid book published in French called Pyramides Humaines by Micheline Nadeau.
Coach Jim Rand bought a copy in Quebec. To get your own copy you could try contacting the publisher Les Editions Quebecor — or click on the book below for details in French.
You do not need to be able to read French to make good use of hundreds of pyramid diagrams.
Nadeau’s book starts with solo positions. Advances to duos, trios and on up to large group formations. It does not include this one:
Castellers de Barcelona – Wikipedia on Human Pyramids
Gymnastics Coaching.com 