I believe that all my books, with the exception of the new one, are out of print. Generally they don't get major distributuon and most Beatles sites, when listing books, probably haven't even heard of them. I've possibly written more Beatles books than anyone else and at 1,200 pages and half a million words, my 'Beatles Encyclopedia' is one of the most detailed of the Beatles booksd. Here is my bibliography:
Arrows : The Official Story Everest Books (1976) ISBN 0-903925-61-3
Mersey Beat: The Beginnings of The Beatles Omnibus Press (1977) ISBN 0-86001-415-0
The Beatles Who's Who Aurum Press (1982) ISBN 0-906053-38-2
Beatlemania Virgin Books (1984) ISBN 0-86369-041-6
Paperback Writers Virgin Books (1984) ISBN 0-86369-021-1
The Book of Lennon Aurum Press (1984) ISBN 0-906053-74-9
Ask Me Why Javelin Books (1985) ISBN 0-7137-1635-5
Beatles For Sale Virgin Books (1985) ISBN 0-86369-097-1
The Book of Beatle Lists Javelin Books (1985) ISBN 0-7137-1521-9
The McCartney File Virgin Books (1986) ISBN 0-86369-157-9
Sgt. Pepper's Lonely Hearts Club Band Atalanta Press (1987) ISBN 187004908X
The Ultimate Beatles Encyclopedia Virgin Books (1992) ISBN 0-86369-681-3
(With Jan Olofsson): My 60s Taschen (1994) ISBN 3-8228-8915-6
The Encyclopedia of Beatles People Blandford Press (1997) ISBN 0-7137-2606-7
The Best Years of The Beatles Headline (1997) ISBN 0-7472-7762-1
Whatever Happened to ... Cassell (1999) ISBN 0-7137-2675-X
The Beatles Encyclopedia: Revised and Updated Virgin Books (2000 ISBN 0-7535-0481-2
The John Lennon Encyclopedia Virgin Books (2000) ISBN 0-7535-0404-9
The Paul McCartney Encyclopedia Virgin Books (2002) ISBN 0-7535-0716-1
The George Harrison Encyclopedia Virgin Books (2003) ISBN 0-7535-0822-2
The Ringo Starr Encyclopedia Virgin Books (2004) ISBN 0-7535-0843-5
The British Invasion Chrome Dreams (2004) ISBN 1-84240-247-1