An attachment arrangement for a window or door covering comprising at least one attachment means insertable between the beading and the glazing of said window or door; at least one guide means (14, 15) being engageable with the at least one attachment means such that the at least one attachment means is configured to attach the at least one guide means (14, 15) to the window or door; wherein the at least one attachment means comprises a first part (25a, 25b, 26a, 26b) which is insertable between the beading and the glazing of a window or door and a second part (33a, 33b, 34a, 34b) which is attachable to the at least one guide means (14, 15), the first and second parts of the at least one attachment means being mutually engagable, rail connecting means (29, 29a) for attaching rail members (30, 31, 32) of the window or door covering, or a portion thereof, to the at least one guide means (14, 15) and/or the at least one attachment means; wherein the attachment arrangement is configured to attach the window or door covering to said window or door without the use of adhesive or mechanical fixings such as screws or the like which may permanently damage portions of the window or door; characterized in that the second part (33a, 33b, 34a, 34b) of the at least one attachment means is slidable laterally into engagement with the first part (25a, 25b, 26a, 26b) thereof after said first part has been inserted between said beading and glazing of said window and the second part (33a, 33b, 34a, 34b) of the at least one attachment means is attached to the end of the at least one guide means (14, 15), such that the at least one guide means (14, 15) becomes attached to the window or door. at least one attachment means insertable between the beading and the glazing of said window or door; at least one guide means (14, 15) being engageable with the at least one attachment means such that the at least one attachment means is configured to attach the at least one guide means (14, 15) to the window or door; wherein the at least one attachment means comprises a first part (25a, 25b, 26a, 26b) which is insertable between the beading and the glazing of a window or door and a second part (33a, 33b, 34a, 34b) which is attachable to the at least one guide means (14, 15), the first and second parts of the at least one attachment means being mutually engagable, rail connecting means (29, 29a) for attaching rail members (30, 31, 32) of the window or door covering, or a portion thereof, to the at least one guide means (14, 15) and/or the at least one attachment means; wherein the attachment arrangement is configured to attach the window or door covering to said window or door without the use of adhesive or mechanical fixings such as screws or the like which may permanently damage portions of the window or door; characterized in that the second part (33a, 33b, 34a, 34b) of the at least one attachment means is slidable laterally into engagement with the first part (25a, 25b, 26a, 26b) thereof after said first part has been inserted between said beading and glazing of said window and the second part (33a, 33b, 34a, 34b) of the at least one attachment means is attached to the end of the at least one guide means (14, 15), such that the at least one guide means (14, 15) becomes attached to the window or door.