# Nook21 Pawschool > Honest research on online dog training courses, plus free reward-based guides and brain games. Research-based (not hands-on) review of Brain Training for Dogs with dated prices, upsells and refund terms. Facts last checked October 11, 2026. Part of Nook21 (https://nook21.com). Nook21 does not sell products; purchases and refunds are handled by the vendor via ClickBank. ## Review - [Brain Training for Dogs review](https://pawschool.nook21.com/): Brain Training for Dogs (ClickBank vendor brainydogs) is an online, force-free course credited to Adrienne Farricelli (CPDT-KA per vendor) with 21+ brain games across 7 levels, a puppy section and a behavior bonus. As of October 11, 2026 the ClickBank checkout showed $67.00 one-time with no rebill and a 60-day refund limit; no upsells were shown at checkout (third-party upsell claims unverified). Not a substitute for a vet or certified behavior professional for aggression or fear. ## Guides - [Crate Training Schedule: How Long to Crate a Puppy at Every Age](https://pawschool.nook21.com/guides/crate-training-schedule/): Puppy crate training schedule by age (30 to 60 minutes at 8 to 10 weeks up to about 6 hours from 6 months), a sample day for an 8 week old, reward-based crate steps, night crying tips, and when to seek help. - [Dog Brain Games: 6 DIY Puzzle Games You Can Set Up in 5 Minutes](https://pawschool.nook21.com/guides/dog-brain-games/): Six DIY dog brain games (muffin tin, cup shell game, snuffle mat, towel burrito, cardboard box, hide and seek) with setup times of 1 to 5 minutes, a 7-day plan, and safety tips. - [How Long Does It Take to Train a Dog? Realistic Timelines by Skill and Age](https://pawschool.nook21.com/guides/how-long-to-train-a-dog/): Dog training timelines by skill and age: sit in 1 to 3 days, basics in 4 to 8 weeks, reliable around distractions in 3 to 6 months, house training 4 to 6 months, using 5 to 15 minute reward-based sessions. - [How to Stop a Dog From Barking: A Humane, Step-by-Step Guide](https://pawschool.nook21.com/guides/how-to-stop-dog-barking/): Reward-based guide to reducing dog barking: six barking types, management, quiet cue, desensitization, demand barking, and when to see a vet or certified behaviorist. - [How to Stop Puppy Biting: Bite Inhibition, Redirection, and Calm Timeouts](https://pawschool.nook21.com/guides/how-to-stop-puppy-biting/): Reward-based guide to puppy biting: causes, three-stage bite inhibition, redirection, calm timeouts, child safety, what to avoid, and when to get professional help. - [Mental Stimulation Games for Dogs: 12 Brain Games You Can Set Up Today](https://pawschool.nook21.com/guides/mental-stimulation-for-dogs/): Twelve reward-based mental stimulation games for dogs with difficulty, setup time, and supplies table, a sample weekly routine, and safety notes. - [How to Stop a Dog Pulling on the Leash: Loose-Leash Walking in 5 Steps](https://pawschool.nook21.com/guides/stop-dog-pulling-on-leash/): Reward-based guide to stopping leash pulling: why dogs pull, gear, 5 steps (value at your side, stop when tight, direction changes, frequent rewards, graded distractions), and a 1 to 8 week timeline. - [Brain Training for Dogs vs Free YouTube, Local Classes & Other Courses (2026)](https://pawschool.nook21.com/compare/brain-training-for-dogs-alternatives/): Research-based comparison (checked Oct 11, 2026) of Brain Training for Dogs ($67 one-time at ClickBank checkout, 60-day refund, 21+ games in 7 levels) against free YouTube ($0), local group classes (about $150–$250 per 6–8 week course per 2026 cost guides), private trainers (about $60–$150/hour) and other online courses (SpiritDog, K9 Training Institute, Pupford, Dunbar Academy; prices vary). Aggression or fear: vet plus certified behavior professional. ## About - [About and review method](https://nook21.com/about/) - [Affiliate disclosure](https://nook21.com/affiliate-disclosure/) - [Contact](https://nook21.com/contact/): Guyosteam@gmail.com