in comic strip apperences,martha has appeared in the "doctor who magazine" strips from #381 onwards and the "doctor who adventures" comics from #28 onwards. the character also appears in the "battles in time" series of comic books periodically. in 2007, american comic book publisher idw publishing announced their plans to do a series of tenth doctor and martha comics for a america. when asked about canonicity, idw executive editor chris ryall dodged the issue by saying all the comics are "blessed" by russell t davies but it is up to the individual how canonical each story is.