When you join two tables in Access, it defaults to an inner join (type 1 join in Access terms). This, as you have found, returns data only when there are matching records on both sides. If you right click the join line in the query you have the choice of join types. The other two options are left (number 2) and right (number 3). Depneding on which way round your tables are positioned, chose the correct one of these to give you all the data from one table and the data from the other table that matches.