active ▁elements ▁struct ured ▁around ▁the ▁interactive ▁elements . ▁Activity ▁books ▁may ▁be ▁made ▁for ▁entertain ment , ▁education ▁or ▁a ▁mixture ▁of ▁both . ▁ ▁Specific ▁types ▁of ▁activity ▁books ▁include ▁colour ing ▁books ▁and ▁puzz le ▁books . ▁A ▁book ▁is ▁normally ▁referred ▁to ▁as ▁an ▁activity ▁book ▁if ▁it ▁comb ines ▁a ▁variety ▁of ▁interactive ▁elements ▁and ▁does ▁not ▁fall ▁neat ly ▁into ▁one ▁of ▁these ▁more ▁specific ▁categories . ▁ ▁Ex amples ▁ ▁Activity ▁books ▁are ▁typically ▁cent red ▁around ▁a ▁particular ▁theme . ▁This ▁may ▁be ▁a ▁generic ▁theme , ▁e . g . ▁din osa urs , ▁or ▁based ▁on ▁a ▁to y , ▁television ▁show , ▁book , ▁or ▁game . ▁▁ ▁For ▁example , ▁the ▁Where ' s ▁W ally ? ▁series ▁of ▁books ▁( known ▁as ▁Where ' s ▁Wal do ? ▁in ▁the ▁USA ) ▁by ▁Martin ▁Hand ford ▁consists ▁of ▁both ▁puzz le ▁books , ▁where in ▁the ▁reader ▁must ▁search ▁for ▁characters ▁hidden ▁in ▁pictures , ▁and ▁activity ▁books ▁such ▁as ▁Where ' s ▁Wal do ?: ▁The ▁Ult imate ▁Fun ▁Book , ▁which ▁include ▁a ▁wider ▁range ▁of ▁games ▁and ▁activities ▁as ▁well ▁as ▁puzz les . ▁In ▁ 2 0 1 8 , ▁N intendo ▁announced ▁its ▁intention ▁to ▁publish ▁activity ▁books ▁based ▁on ▁its ▁tra dem ark ed ▁characters ▁and ▁games . ▁Other ▁franch ises ▁for ▁which ▁a ▁number ▁of ▁activity ▁books ▁are ▁available ▁include : ▁▁ ▁Books ▁by ▁Julia ▁Donald son ▁ ▁Di ary ▁of ▁a ▁W