If you wish to buy a printed copy of this book from Amazon then please click here All my royalties from sales of this paperback book are being donated to the British Astronomical Association’s Commission for Dark Skies  please click here for information. To obtain a free digital download of my book as a PDF file please click here If you feel like donating something for the free download version then I would like donations to go to either of two Dorset hospices. Please click here to donate to Weldmar Hospice for adults or here  to Julia’s House Hospice for children. Thank You!