Opening theory has come a long way, from the ECO codes to the current digital, multimedia publications. The ChessBase Opening Encyclopaedia is more than a compilation of writings on opening variations. It also has opening videos, tutorials, databases and games, annotated and unannotated. For who is it intended? For everyone who wants to learn.
Handbook and Yearbook During its long life,
Descent has produced a variety of handbooks and one yearbook, offering cavers a ready source of information about clubs, groups and the sport of caving. The magazine typically contained a questionnaire that club secretaries were asked to fill in and return, and this was the main source of data that was collated along with information supplied by the regional and national bodies.
The first
Descent Handbook for Cavers was published in 1970 as an A5, 28 page booklet. The next edition quickly followed, in 1971, extending its pagination to 34 pages of information, while the third appeared in 1974 and ran to 44 pages. The contents list also expanded, recording details of caving film for hire and accommodation as well as equipment and services, cave rescue organisations and the background to the newly emerging Ghar Paru Foundation.