![](http://www.alamy.com/thumbs/6/7132B7E1-E452-4A6F-B6E4-0FAF69474B49/EA135X.jpg)
thought bubbles
thought bubbles on blackboard
Size: 3800px × 3072px
Photo credit: © Zoonar/Ruslan Nassyrov / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: abstract, announcement, attachment, background, balloon, black, blackboard, blank, board, bubble, bubbles, chalk, chalkboard, communicate, communication, concept, copy, design, dirty, drawing, drawn, empty, green, grunge, hand, handwriting, memo, message, sign, sketch, space, symbol, talk, texture, thought, white, wooden, write