Greenwich House has a downloadable format for Val Cushing's glaze handouts. His book used to be available through his wife and Alfred University.
Since Val Cushing's passing, his orange glaze book is available on Amazon for $125.
You may find better prices through google searches. Val is considered to be the Master of glazing and a must read for any serious potter.
Handouts are not for resale and contain numerous high fire recipes, some low fire recipes, also slip and wash recipes.
Julia Galloway has pdf handouts on her pottery blog. These are not for resale.