Richard Helm, John Vlissides, Erich Gamma, Ralph Johnson

Richard Helm, John Vlissides, Erich Gamma, Ralph Johnson has written at least 1 book. Their most popular book is Design Patterns: Elements of Reusable Object-Oriented Software with 2 saves with an average rating of -⭐.

They are best known for writing in the genres one, asdfsa, and Asdfsa.

mone, asdfsa, and Asdfsa are their most common moods.