I had the opportunity to work with WebRTC at work, so I compiled some introductory books.

• Reference: WebRTC API 技術資料の課題について

All three books below have digital versions, which is great.

• わか(った気がす)るWebRTC 紙＋電子版セット - Route 312 - BOOTH
• O'Reilly Japan - Real World HTTP
• O'Reilly Japan - ハイパフォーマンス ブラウザネットワーキング

That’s all from the Gemba where I want to work with WebRTC.