Answer the question at the end by quoting:

Terrance Dicks (born 14 April 1935) is an English author and former television screenwriter, script editor and producer. In television, Dicks had a long association with the BBC science-fiction series Doctor Who, working as a writer and also serving as the programme's script editor from 1968 to 1974. The Doctor Who News Page described him as "arguably the most prolific contributor to Doctor
Dicks contributed heavily to Target Books' series of novelisations of the Doctor Who TV serials, writing more than 60 of the titles published by the company. As Dicks explains in an interview in the documentary Built for War (included on the 2006 DVD release of The Sontaran Experiment), he served as the unofficial editor of the Target Books range. In this role, he would attempt to enlist the author of the original teleplay to write the novelisation whenever possible, but if they refused or had other commitments, Dicks would usually undertake the work himself (although he also recruited other writers, including former Doctor Who actor Ian Marter and former series producer Philip Hinchcliffe). On one occasion, he enlisted Robert Holmes to novelise his script for The Time Warrior, but when Holmes gave up after writing only one chapter, it was left to Dicks to complete the work. Dicks would have better success in recruiting the original writers for the later Doctor Who serials, and was required to adapt only one Sixth Doctor story himself (The Mysterious Planet; he again replaced Holmes, who had died in 1986). Dicks' name appears on the cover of no Seventh Doctor novelisations. His plans to publish a novelisation of his stage play Doctor Who - The Ultimate Adventure have yet to be realised. During the 1990s, Dicks contributed to Virgin Publishing's line of full-length, officially licensed, original Doctor Who novels, New Adventures, which continued the series' storyline following the TV cancellation in 1989. Dicks wrote three Doctor Who novels for Virgin, and continued to write occasionally for the franchise after BBC Books assumed the licence in 1997. He wrote the first of the Eighth Doctor Adventures, titled The Eight Doctors, which was, for a time, the best-selling original Doctor Who novel. World Game, featuring the Second Doctor, is set during the so-called "Season 6B". His most recent contributions to the range are the Quick Reads books Made of Steel and Revenge of the Judoon, both featuring the Tenth Doctor and Martha Jones.

How many books did he write?

contributed heavily to Target Books' series of novelisations of the Doctor Who TV serials, writing more than 60 of the titles published by the company.

Answer the question at the end by quoting:

ABBA (Swedish pronunciation: [2ab:a]) were a Swedish pop group, formed in Stockholm in 1972 by Agnetha Faltskog, Bjorn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad: the group name derives from the first letter in each of their names. They became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1974 to 1982. ABBA won the Eurovision Song Contest 1974 at The Dome in Brighton, UK, giving Sweden its first triumph in the contest. They are the most successful group to have taken part in the competition.
In March 1976, the band released the compilation album Greatest Hits, despite having had only six top 40 hits in the United Kingdom and the United States. Nevertheless, it became their first UK number-one album, and also took ABBA into the Top 50 on the US album charts for the first time, eventually selling more than a million copies there. At the same time, Germany released a compilation named The Very Best of ABBA, also becoming a number-one album there whereas the Greatest Hits compilation followed a few months later to number-two on the German charts, despite all similarities with The Very Best album. Also included on Greatest Hits was a new single, "Fernando", which went to number-one in at least thirteen countries worldwide, including the United Kingdom, Germany and Australia, and the single went on to sell over 10 million copies worldwide. In Australia, the song occupied the top position for 14 weeks (and stayed in the chart for 40 weeks), tying with the Beatles' "Hey Jude" for longest-running number-one, and making "Fernando" one of the best-selling singles of all time in Australia. That same year, the group received its first international prize, with "Fernando" being chosen as the "Best Studio Recording of 1975". In the United States, "Fernando" reached the Top 10 of the Cashbox Top 100 singles chart and number 13 on the Billboard Hot 100. It also topped the Billboard Adult Contemporary chart, ABBA's first American number-one single on any chart. The group's fourth studio album, Arrival, a number-one best-seller in Europe and Australia, represented a new level of accomplishment in both songwriting and studio work, prompting rave reviews from more rock-oriented UK music weeklies such as Melody Maker and New Musical Express, and mostly appreciative notices from US critics. Hit after hit flowed from Arrival: "Money, Money, Money", another number-one in Germany and Australia, and "Knowing Me, Knowing You", ABBA's sixth consecutive German number-one as well as another UK number-one. The real sensation was "Dancing Queen", not only topping the charts in loyal markets the UK, Germany and Australia, but also reaching number-one in the United States. In South Africa, ABBA had astounding success with "Fernando", "Dancing Queen" and "Knowing Me, Knowing You" being among the top 20 best-selling singles for 1976-77. In 1977, Arrival was nominated for the inaugural BRIT Award in the category "Best International Album of the Year". By this time ABBA were popular in the United Kingdom, most of Western Europe, Australia and New Zealand. In Frida - The DVD, Lyngstad explains how she and Faltskog developed as singers, as ABBA's recordings grew more complex over the years. The band's popularity in the United States would remain on a comparatively smaller scale, and "Dancing Queen" became the only Billboard Hot 100 number-one single ABBA had there (they did, however, get three more singles to the number-one position on other Billboard charts, including Billboard Adult Contemporary and Hot Dance Club Play). Nevertheless, Arrival finally became a true breakthrough release for ABBA on the US album market where it peaked at number 20 on the Billboard 200 chart and was certified gold by RIAA.

what was it called?
Greatest Hits,