Series Three, published beginning in 1978, contains a total of 5 books in the “O” series and 131 books* in the main series (The Double Hook #054 has two covers). The books below are in numerical order.
* there may be missing titles in this list. Series Three’s first new title began with N153 Beautiful Losers by Leonard Cohen and ended with N196 The Tent Peg by Aritha van Herk, but the more popular books that were published previously in Series One and Series Two were also published in Series Three. This leads to trouble when compiling a complete list of all the Series Three titles in existence as it is difficult to know which titles continued to be printed from the previous two series and which weren’t.