SO glad to see Tikki Tikki Tembo on here! It's one of my faves from childhood and Santa brought it to our 4 year old this year. We've really been enjoying it. Here are some of our other favorites. I have a 2 and 4 year old boys:
The Mitten
The Gingerbread Baby
Dr. Seuss -particularly Green Eggs and Ham, One Fish Two Fish... and Horton Hatches the Egg
Sandra Boynton books -But Not the Hippopotamus, Birthday Monsters, Barnyard Dance, Snuggle Puppy, etc.
The Polar Express
Shel Silverstein's "A Giraffe and a Half" and his poetry books "Where the Sidewalk Ends" and "A Light in the Attic"
We love traditional fairy tales -Puss in Boots, Three Little Pigs, Rapunzel, Jack and the Beanstalk, Emperor's New Clothes, Hansel and Gretel, etc.
Is Your Mama a Llama?
Pirate books -The Pirate Cruncher, How I Became a Pirate
A Bad Case of Stripes
We also love Little Golden Books and I really love reading them ones from my childhood like "The Little Red Caboose" and "The Pokey Little Puppy" and "Saggy Baggy Elephant"