Recommended books by various authors like Joel P Smith, Harry Marra, John Rap, Bert Vreeswijk, Frédéric Gousset, Mike Chapman, Framk Zarnowski and Dale Harder
Guido Kratschmer was a world-class German decathlete known for setting a world record and winning major titles, despite a career frequently disrupted by injuries and missed Olympic opportunities.
Between 1980 and 1981, Bulgarian female athletes like Daniela Nenova, Emilia Kunova, and Valentina Dimitrova made rapid progress in pentathlon and heptathlon, setting national records and achieving personal bests in multiple competitions,
If you want statistics, rankings, results, records, athlete profiles, and the history of the decathlon, Decathlon 2000 is one of the most complete resources available anywhere in the world - ChatGPT