413 books • 114 series
X-Book Fighters: Vikings (X-Book: Fighters)
Leprechauns (Amazing Mysteries)
Dragons (Amazing Mysteries)
Amazing Animals: Bats (Amazing Animals)
El Mono (Planeta Animal)
Wolves (Amazing Animals)
Tennis (Amazing Sports)
La Jirafa (Planeta Animal)
La Serpiente (Planeta Animal)
El Lobo (Planeta Animal)
El Tiburón (Planeta Animal)
El Oso Polar (Planeta Animal)
El León (Planeta Animal)
El Murciélago (Planeta Animal)
Capital Punishment (History of Crime and Punishment)
Martin Luther King Jr. (Odysseys in Peace)
The Hunt for Osama Bin Laden (Turning Points)
The War in Iraq (Turning Points)
Nelson Mandela (Odysseys in Peace)
Prairie Dogs (Amazing Animals)
El Uapití
Lemurs (Amazing Animals)
Seahorses (Amazing Animals)
La Llama
