Besides the alternate keyboard (holding down the "ALT" key while typing various keyboard letters) there's EVEN MORE options when you hold down both the SHIFT key AND the ALT key while typing various letters.

Some of the ALT + keyboard letters:
¡™£¢*§¶•ªº–* œ*´®Ý¥¨ˆø*“‘« åß*ƒ©·*°¬…æ *=ç**˜µ**÷

Some of the ALT + SHIFT + keyboard letters:
/€ÐðÞþý°·‚—± Œ„´‰*Á¨ˆØ*”’» ÅÍÎÏ*ÓÔ*ÒÚÆ ¸*Ç*i˜Â¯*¿

Note that the letters / symbols displayed are limited to the characters included in the particular type font being used by the computer or website controlling the display. That's why you may be able to type & see a special character, but it does not appear to another reader.