内容简介
Areferencebookforyoungreaderscoveringawiderangeoftopicsfromartandanimalstonewtechnology.Arrangedthematicallyandillustratedwithover1500photos,illustrationsanddiagrams.QRcodesallowreaderstoaccesshundredsofcarefullyselectedwebsites,downloadablepicturesandquizzes-straighttoamobilephoneortablet.Allinternetlinksarethoroughlyresearched,checkedandmonitoredforqualityandonlinesafety.