Philip ArdaghThe Hieroglyphs Handbook, London, 1999
Maria Carmela Betro Hieroglyphics The Writings of Ancient Egypt, New York, 1996
Ronald L. Bonewitz Hieroglyphics, London, 2001
A.H Egyptian grammar, Oxford, 1957
Mertz Temples, Tombs and Hieroglyphs, New York, 1964
Robinson The Story of Writing, London,
Watson Introducing Egyptian Hieroglyphs, Edinburgh, 1993
Wilson Understanding Hieroglyphs, London, 1995
Wilson Hieroglyphs A Very Short Introduction, Oxford, 2003
Zauzich Discovering Egyptian Hieroglyphs, London, 1992
The recommended introductory text is Professor Zauzich's. Accessible and clear.
The standard is Gardiner. It assumes a certain level of linguistic knowledge and it's size makes it ideal for the coffee table.
Betro's wonderfully produced Writings of Ancient Egypt may be considered an ideal present for those who are not on a budget.
Mertz's Temples, Tombs and Hieroglyphs is simply great fun.