Entitled Sussex Wildlife it details some of the wonders of 20 wildlife reserves including hidden backwaters little known by outdoor lovers.
Locally, the 20 chapters include Bedelands Farm in Burgess Hill, Nymans Woods in Handcross, Chailey Common and Ashdown Forest.
Further afield it documents Pagham Harbour, Rye Harbour, Lullington Heath, Pulborough Brooks and the little known butterfly and bird reserve Park Corner Heath, south east of Uckfield.
David, who lives in Whitemans Green in Cuckfield, said: "I had 1,400 words for each chapter and I needed to convey a sense of each reserve, making it sound like an attractive place to walk, nevermind the wildlife, which I have then tried to describe in addition.
"The book is for enthusiastic amateurs who like to go for a walk and learn a little bit about the place they are in."
The 94-page book includes linocuts by the Kent-based illustrator Hugh Ribbans, whom David commissioned.
It is also fully endorsed by the Sussex Wildlife Trust who describe it as 'ideal for butterfly aficionados, bat fans, tree lovers and wild flower enthusiasts'.
The trust says: "David has not written for experts, but for other laymen who, like himself, treasure the myriad natural wonders, many of them well hidden, to be found deep in the beautiful Sussex countryside – especially the flora and fauna that flourish within them, from courting adders and shy bitterns to unusual butterflies and spectacular wild flowers."
David started writing about eight years ago after retiring from the publishing industry.
He has written eight adults' books about sport and the natural world and 15 children's books under the name of Duncan Crosbie about historical events such as the sinking of the Titanic, the Irish famine and the history of flight.
Sussex Wildlife is published in the collectible Sussex Guides series by Snake River Press, price £8.99, available from bookshops or from www.snakeriverpress.co.uk.