A series of books and written articles in the field of ufology; A series of books, written articles, handouts and worksheets in the field of ufology; Books in the field of ufology; Educational books featuring ufology; Printed lectures; Printed materials, namely, curricula in the field of ufology; Printed materials, namely, press releases featuring ufology; Printed news releases in the field of ufology; Publications, namely, brochures, booklets, and teaching materials in the field of ufology; ...