Microsoft Access allows you to underline a character in a caption, giving it ALT key access, by specifying an ampersand before the character that is to be underlined. Because the ampersand appears before the space in the following caption
Jack & Jill
Microsoft Access assumes that the intention is to underline the space following the ampersand.
If an ampersand is to appear in a caption, you must specify two ampersand characters in a row. For example, entering the following caption in the property sheet
Jack && Jill
will result in the following caption in the resulting form or control:
Jack & Jill