Please can some one help me???

Ive bought some small hard back note books and have tried to cover them in pretty papers ready to embellish and TRy to sell at PTA craft fayre on Saturday...BUT...
Im getting in a right mess...have tried PVA type glue ..1st piece of paper i cut too short...2nd one I got in a right sticky mess with...Im sure there must be an easy way to do it!!!

i have got repo herma..should I be using that???

ANy tips will be greatly appreciated...
ANd if Ive put this in the wrong section I do apologise!!!

TIA