According to Og the Frog Series by Betty G. Birney, John H. Mayer

The adventures in Humphrey's Room 26 are hopping back into the spotlight, from the perspective of Og the Frog!When Og the Frog first comes to Room 26, he doesn't know what to think. He misses his friends from the pond, there are all kinds of strange noises, and the water is his tank just might be too clean (you know, a little muck never hurt anyone)... moreThe adventures in Humphrey's Room 26 are hopping back into the spotlight, from the perspective of Og the Frog!When Og the Frog first comes to Room 26, he doesn't know what to think. He misses his friends from the pond, there are all kinds of strange noises, and the water is his tank just might be too clean (you know, a little muck never hurt anyone). But the furry, squeaky fellow living next to him is endlessly entertaining, the kids sure are friendly, and--BING, BANG, BOING!--they put big fat crickets right into his tank. All of this gives Og lots of ideas for one of his favorite passtimes--making up poems and songs. But he gets stumped when talk turns to sending him back to the pond. Will he have to say good-bye to Tabitha whose whole life just changed like his? Or Mandy who just started seeing the bright side of things with his help? And Humphrey, who he's finally beginning to figure out? Og's frog's-eye view of the world is curious, sympathetic, and poetic, and the perfect companion to The World According to Humphrey. less

In the second book in the Og the Frog spinoff of the Humphrey series, Og is ready for adventure and is jumping at the chance to help kids be brave!Og loves the kids in Room 26, but he's awfully curious about the human world outside his tank! His friend Humphrey has no problem getting out and about, but it's harder for Og because he can't climb the way a hamster can. But Og never let hard work or fear stop him from going after what he wants... moreIn the second book in the Og the Frog spinoff of the Humphrey series, Og is ready for adventure and is jumping at the chance to help kids be brave!Og loves the kids in Room 26, but he's awfully curious about the human world outside his tank! His friend Humphrey has no problem getting out and about, but it's harder for Og because he can't climb the way a hamster can. But Og never let hard work or fear stop him from going after what he wants. And he's determined to help the tads in Room 26 understand that taking risks can pay off--especially when they are being true to themselves. Whether it's learning that a younger kid can have great ideas, a student who learns differently can have hidden talents, or ideas that seem crazy at first can actually be amazing if you look at them from a different perspective, Og wants everyone to celebrate their talents. And once he fully embraces his frogginess--BING-BANG-BOING--he figures out how to go where no frog has gone before. Og's frog's-eye view of the world is curious, adventurous, and creative, and the perfect companion to Trouble According to Humphrey. less

In the third book in the spinoff of the Humphrey series, Og and Humphrey head to summer camp to see what's hopping in the wilderness!Og didn't know where he would end up when school was over, but it turns out Camp Happy Hollow is just about the best place ever. Lovely nature is all around, friends from Room 26 are there--including Humphrey!--and camp days are full of exciting activities... moreIn the third book in the spinoff of the Humphrey series, Og and Humphrey head to summer camp to see what's hopping in the wilderness!Og didn't know where he would end up when school was over, but it turns out Camp Happy Hollow is just about the best place ever. Lovely nature is all around, friends from Room 26 are there--including Humphrey!--and camp days are full of exciting activities. Og has lots of new responsibilities, like watching out for Humphrey, helping his fellow campers adjust to being away from home, and encouraging everyone to always try their best. But when one camper lets Og loose at the lake, he is in a tough spot. The lake sure does feel like home, but so does his tank. Plus his human friends need him--and so does Humphrey. Good thing Og has experience in the wild because--BING-BANG-BOING!--this is going to be one hopping summer! Og's frog's-eye view of summer camp is silly, caring, and adventurous--the perfect companion to Summer According to Humphrey. less