My Heavens! charts the progress of the author's own substantial observatory from conception, through design, planning and construction, to using an observatory of the kind that all amateur astronomers aspire to own. For those with more modest ambitions, the book offers many hints, tips and design features for smaller observatories. Comparisons are made with similar large projects in the USA. The story doesn't end with the construction of the observatory, but goes on to describe the author's choice of equipment, setting it up, and his own techniques for obtaining superb astronomical images like those displayed in his book.